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8ca151b5 JB |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
26d6c16b SS |
9 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
10 | * Copyright(c) 2016 - 2017 Intel Deutschland GmbH | |
8ca151b5 JB |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of version 2 of the GNU General Public License as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | * General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
24 | * USA | |
25 | * | |
26 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 27 | * in the file called COPYING. |
8ca151b5 JB |
28 | * |
29 | * Contact Information: | |
cb2f8277 | 30 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
31 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
32 | * | |
33 | * BSD LICENSE | |
34 | * | |
51368bf7 | 35 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
26d6c16b SS |
36 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
37 | * Copyright(c) 2016 - 2017 Intel Deutschland GmbH | |
8ca151b5 JB |
38 | * All rights reserved. |
39 | * | |
40 | * Redistribution and use in source and binary forms, with or without | |
41 | * modification, are permitted provided that the following conditions | |
42 | * are met: | |
43 | * | |
44 | * * Redistributions of source code must retain the above copyright | |
45 | * notice, this list of conditions and the following disclaimer. | |
46 | * * Redistributions in binary form must reproduce the above copyright | |
47 | * notice, this list of conditions and the following disclaimer in | |
48 | * the documentation and/or other materials provided with the | |
49 | * distribution. | |
50 | * * Neither the name Intel Corporation nor the names of its | |
51 | * contributors may be used to endorse or promote products derived | |
52 | * from this software without specific prior written permission. | |
53 | * | |
54 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
55 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
56 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
57 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
58 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
59 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
60 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
61 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
62 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
63 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
64 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
65 | * | |
66 | *****************************************************************************/ | |
67 | #include <linux/kernel.h> | |
68 | #include <linux/slab.h> | |
69 | #include <linux/skbuff.h> | |
70 | #include <linux/netdevice.h> | |
71 | #include <linux/etherdevice.h> | |
f0c2646a | 72 | #include <linux/ip.h> |
2ee8f021 | 73 | #include <linux/if_arp.h> |
2f89a5d7 | 74 | #include <linux/time.h> |
8ca151b5 | 75 | #include <net/mac80211.h> |
7b1dd048 | 76 | #include <net/ieee80211_radiotap.h> |
f0c2646a | 77 | #include <net/tcp.h> |
8ca151b5 JB |
78 | |
79 | #include "iwl-op-mode.h" | |
80 | #include "iwl-io.h" | |
81 | #include "mvm.h" | |
82 | #include "sta.h" | |
83 | #include "time-event.h" | |
84 | #include "iwl-eeprom-parse.h" | |
8ca151b5 | 85 | #include "iwl-phy-db.h" |
507cadf2 | 86 | #include "testmode.h" |
655e6d6d EG |
87 | #include "iwl-fw-error-dump.h" |
88 | #include "iwl-prph.h" | |
88931cc9 | 89 | #include "iwl-nvm-parse.h" |
2f89a5d7 | 90 | #include "fw-dbg.h" |
8ca151b5 JB |
91 | |
92 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
93 | { | |
94 | .max = 1, | |
8eb38710 | 95 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 96 | }, |
3c15a0fb JB |
97 | { |
98 | .max = 1, | |
8eb38710 IP |
99 | .types = BIT(NL80211_IFTYPE_AP) | |
100 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
101 | BIT(NL80211_IFTYPE_P2P_GO), |
102 | }, | |
103 | { | |
104 | .max = 1, | |
105 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
106 | }, | |
8ca151b5 JB |
107 | }; |
108 | ||
109 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
110 | { | |
2624a5ca | 111 | .num_different_channels = 2, |
8ca151b5 JB |
112 | .max_interfaces = 3, |
113 | .limits = iwl_mvm_limits, | |
114 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
115 | }, | |
116 | }; | |
117 | ||
f0c2646a JB |
118 | #ifdef CONFIG_PM_SLEEP |
119 | static const struct nl80211_wowlan_tcp_data_token_feature | |
120 | iwl_mvm_wowlan_tcp_token_feature = { | |
121 | .min_len = 0, | |
122 | .max_len = 255, | |
123 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
124 | }; | |
125 | ||
126 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
127 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
128 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
129 | sizeof(struct ethhdr) - | |
130 | sizeof(struct iphdr) - | |
131 | sizeof(struct tcphdr), | |
132 | .data_interval_max = 65535, /* __le16 in API */ | |
133 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
134 | sizeof(struct ethhdr) - | |
135 | sizeof(struct iphdr) - | |
136 | sizeof(struct tcphdr), | |
137 | .seq = true, | |
138 | }; | |
139 | #endif | |
140 | ||
77736923 | 141 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
142 | /* |
143 | * Use the reserved field to indicate magic values. | |
144 | * these values will only be used internally by the driver, | |
145 | * and won't make it to the fw (reserved will be 0). | |
146 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
147 | * be the vif's ip address. in case there is not a single | |
148 | * ip address (0, or more than 1), this attribute will | |
149 | * be skipped. | |
150 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
151 | * the LSB bytes of the vif's mac address | |
152 | */ | |
153 | enum { | |
154 | BC_FILTER_MAGIC_NONE = 0, | |
155 | BC_FILTER_MAGIC_IP, | |
156 | BC_FILTER_MAGIC_MAC, | |
157 | }; | |
158 | ||
77736923 EP |
159 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
160 | { | |
161 | /* arp */ | |
162 | .discard = 0, | |
163 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
164 | .attrs = { | |
165 | { | |
166 | /* frame type - arp, hw type - ethernet */ | |
167 | .offset_type = | |
168 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
169 | .offset = sizeof(rfc1042_header), | |
170 | .val = cpu_to_be32(0x08060001), | |
171 | .mask = cpu_to_be32(0xffffffff), | |
172 | }, | |
2ee8f021 EP |
173 | { |
174 | /* arp dest ip */ | |
175 | .offset_type = | |
176 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
177 | .offset = sizeof(rfc1042_header) + 2 + | |
178 | sizeof(struct arphdr) + | |
179 | ETH_ALEN + sizeof(__be32) + | |
180 | ETH_ALEN, | |
181 | .mask = cpu_to_be32(0xffffffff), | |
182 | /* mark it as special field */ | |
183 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
184 | }, | |
185 | }, | |
186 | }, | |
187 | { | |
188 | /* dhcp offer bcast */ | |
189 | .discard = 0, | |
190 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
191 | .attrs = { | |
192 | { | |
193 | /* udp dest port - 68 (bootp client)*/ | |
194 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
195 | .offset = offsetof(struct udphdr, dest), | |
196 | .val = cpu_to_be32(0x00440000), | |
197 | .mask = cpu_to_be32(0xffff0000), | |
198 | }, | |
199 | { | |
200 | /* dhcp - lsb bytes of client hw address */ | |
201 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
202 | .offset = 38, | |
203 | .mask = cpu_to_be32(0xffffffff), | |
204 | /* mark it as special field */ | |
205 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
206 | }, | |
77736923 EP |
207 | }, |
208 | }, | |
209 | /* last filter must be empty */ | |
210 | {}, | |
211 | }; | |
212 | #endif | |
213 | ||
7498cf4c EP |
214 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
215 | { | |
7bb426ea | 216 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
217 | return; |
218 | ||
219 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
220 | spin_lock_bh(&mvm->refs_lock); |
221 | mvm->refs[ref_type]++; | |
222 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
223 | iwl_trans_ref(mvm->trans); |
224 | } | |
225 | ||
226 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
227 | { | |
7bb426ea | 228 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
229 | return; |
230 | ||
231 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
576eeee9 | 232 | spin_lock_bh(&mvm->refs_lock); |
16c45822 SS |
233 | if (WARN_ON(!mvm->refs[ref_type])) { |
234 | spin_unlock_bh(&mvm->refs_lock); | |
235 | return; | |
236 | } | |
237 | mvm->refs[ref_type]--; | |
576eeee9 | 238 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
239 | iwl_trans_unref(mvm->trans); |
240 | } | |
241 | ||
576eeee9 EP |
242 | static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
243 | enum iwl_mvm_ref_type except_ref) | |
7498cf4c | 244 | { |
576eeee9 | 245 | int i, j; |
7498cf4c | 246 | |
7bb426ea | 247 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
248 | return; |
249 | ||
576eeee9 EP |
250 | spin_lock_bh(&mvm->refs_lock); |
251 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
252 | if (except_ref == i || !mvm->refs[i]) | |
7498cf4c EP |
253 | continue; |
254 | ||
576eeee9 EP |
255 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
256 | i, mvm->refs[i]); | |
257 | for (j = 0; j < mvm->refs[i]; j++) | |
258 | iwl_trans_unref(mvm->trans); | |
259 | mvm->refs[i] = 0; | |
7498cf4c | 260 | } |
576eeee9 | 261 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
262 | } |
263 | ||
f4cf8680 EP |
264 | bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) |
265 | { | |
266 | int i; | |
267 | bool taken = false; | |
268 | ||
269 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
270 | return true; | |
271 | ||
272 | spin_lock_bh(&mvm->refs_lock); | |
273 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
274 | if (mvm->refs[i]) { | |
275 | taken = true; | |
276 | break; | |
277 | } | |
278 | } | |
279 | spin_unlock_bh(&mvm->refs_lock); | |
280 | ||
281 | return taken; | |
282 | } | |
283 | ||
576eeee9 | 284 | int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
d40fc489 GG |
285 | { |
286 | iwl_mvm_ref(mvm, ref_type); | |
287 | ||
288 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
289 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), | |
290 | HZ)) { | |
291 | WARN_ON_ONCE(1); | |
292 | iwl_mvm_unref(mvm, ref_type); | |
293 | return -EIO; | |
294 | } | |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
fe0f2de3 IP |
299 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
300 | { | |
301 | int i; | |
302 | ||
303 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
304 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
305 | mvm->phy_ctxts[i].id = i; | |
306 | mvm->phy_ctxts[i].ref = 0; | |
307 | } | |
308 | } | |
309 | ||
88931cc9 | 310 | struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, |
8ba2d7a1 | 311 | const char *alpha2, |
47c8b154 JD |
312 | enum iwl_mcc_source src_id, |
313 | bool *changed) | |
88931cc9 AN |
314 | { |
315 | struct ieee80211_regdomain *regd = NULL; | |
316 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
317 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
318 | struct iwl_mcc_update_resp *resp; | |
319 | ||
320 | IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); | |
321 | ||
8ba2d7a1 | 322 | lockdep_assert_held(&mvm->mutex); |
88931cc9 | 323 | |
8ba2d7a1 | 324 | resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); |
88931cc9 AN |
325 | if (IS_ERR_OR_NULL(resp)) { |
326 | IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", | |
b8c474d9 | 327 | PTR_ERR_OR_ZERO(resp)); |
8ba2d7a1 | 328 | goto out; |
88931cc9 AN |
329 | } |
330 | ||
47c8b154 JD |
331 | if (changed) |
332 | *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); | |
333 | ||
162ee3c9 | 334 | regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, |
88931cc9 AN |
335 | __le32_to_cpu(resp->n_channels), |
336 | resp->channels, | |
337 | __le16_to_cpu(resp->mcc)); | |
8ba2d7a1 EH |
338 | /* Store the return source id */ |
339 | src_id = resp->source_id; | |
88931cc9 AN |
340 | kfree(resp); |
341 | if (IS_ERR_OR_NULL(regd)) { | |
342 | IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", | |
b8c474d9 | 343 | PTR_ERR_OR_ZERO(regd)); |
8ba2d7a1 | 344 | goto out; |
88931cc9 AN |
345 | } |
346 | ||
8ba2d7a1 EH |
347 | IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", |
348 | regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); | |
88931cc9 | 349 | mvm->lar_regdom_set = true; |
8ba2d7a1 | 350 | mvm->mcc_src = src_id; |
88931cc9 | 351 | |
8ba2d7a1 | 352 | out: |
88931cc9 AN |
353 | return regd; |
354 | } | |
355 | ||
47c8b154 JD |
356 | void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) |
357 | { | |
358 | bool changed; | |
359 | struct ieee80211_regdomain *regd; | |
360 | ||
361 | if (!iwl_mvm_is_lar_supported(mvm)) | |
362 | return; | |
363 | ||
364 | regd = iwl_mvm_get_current_regdomain(mvm, &changed); | |
365 | if (!IS_ERR_OR_NULL(regd)) { | |
366 | /* only update the regulatory core if changed */ | |
367 | if (changed) | |
368 | regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); | |
369 | ||
370 | kfree(regd); | |
371 | } | |
372 | } | |
373 | ||
374 | struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, | |
375 | bool *changed) | |
8ba2d7a1 EH |
376 | { |
377 | return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", | |
378 | iwl_mvm_is_wifi_mcc_supported(mvm) ? | |
379 | MCC_SOURCE_GET_CURRENT : | |
47c8b154 | 380 | MCC_SOURCE_OLD_FW, changed); |
8ba2d7a1 EH |
381 | } |
382 | ||
383 | int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) | |
384 | { | |
385 | enum iwl_mcc_source used_src; | |
386 | struct ieee80211_regdomain *regd; | |
b6e160ab AN |
387 | int ret; |
388 | bool changed; | |
8ba2d7a1 EH |
389 | const struct ieee80211_regdomain *r = |
390 | rtnl_dereference(mvm->hw->wiphy->regd); | |
391 | ||
392 | if (!r) | |
b6e160ab | 393 | return -ENOENT; |
8ba2d7a1 EH |
394 | |
395 | /* save the last source in case we overwrite it below */ | |
396 | used_src = mvm->mcc_src; | |
397 | if (iwl_mvm_is_wifi_mcc_supported(mvm)) { | |
398 | /* Notify the firmware we support wifi location updates */ | |
47c8b154 | 399 | regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
8ba2d7a1 EH |
400 | if (!IS_ERR_OR_NULL(regd)) |
401 | kfree(regd); | |
402 | } | |
403 | ||
404 | /* Now set our last stored MCC and source */ | |
b6e160ab AN |
405 | regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, |
406 | &changed); | |
8ba2d7a1 EH |
407 | if (IS_ERR_OR_NULL(regd)) |
408 | return -EIO; | |
409 | ||
b6e160ab AN |
410 | /* update cfg80211 if the regdomain was changed */ |
411 | if (changed) | |
412 | ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); | |
413 | else | |
414 | ret = 0; | |
8ba2d7a1 | 415 | |
b6e160ab AN |
416 | kfree(regd); |
417 | return ret; | |
8ba2d7a1 EH |
418 | } |
419 | ||
8ca151b5 JB |
420 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
421 | { | |
422 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 423 | int num_mac, ret, i; |
5f4c02e2 JB |
424 | static const u32 mvm_ciphers[] = { |
425 | WLAN_CIPHER_SUITE_WEP40, | |
426 | WLAN_CIPHER_SUITE_WEP104, | |
427 | WLAN_CIPHER_SUITE_TKIP, | |
428 | WLAN_CIPHER_SUITE_CCMP, | |
429 | }; | |
8ca151b5 JB |
430 | |
431 | /* Tell mac80211 our characteristics */ | |
30686bf7 JB |
432 | ieee80211_hw_set(hw, SIGNAL_DBM); |
433 | ieee80211_hw_set(hw, SPECTRUM_MGMT); | |
434 | ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); | |
435 | ieee80211_hw_set(hw, QUEUE_CONTROL); | |
436 | ieee80211_hw_set(hw, WANT_MONITOR_VIF); | |
437 | ieee80211_hw_set(hw, SUPPORTS_PS); | |
438 | ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); | |
439 | ieee80211_hw_set(hw, AMPDU_AGGREGATION); | |
440 | ieee80211_hw_set(hw, TIMING_BEACON_ONLY); | |
441 | ieee80211_hw_set(hw, CONNECTION_MONITOR); | |
442 | ieee80211_hw_set(hw, CHANCTX_STA_CSA); | |
443 | ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); | |
444 | ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); | |
909ddf0b | 445 | ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); |
30433d3b | 446 | ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); |
b915c101 SS |
447 | if (iwl_mvm_has_new_rx_api(mvm)) |
448 | ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); | |
65e25482 JB |
449 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) |
450 | ieee80211_hw_set(hw, AP_LINK_PS); | |
8ca151b5 | 451 | |
80938abc JB |
452 | if (mvm->trans->num_rx_queues > 1) |
453 | ieee80211_hw_set(hw, USES_RSS); | |
454 | ||
2d7cf549 JB |
455 | if (mvm->trans->max_skb_frags) |
456 | hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; | |
457 | ||
cf961e16 LK |
458 | if (!iwl_mvm_is_dqa_supported(mvm)) |
459 | hw->queues = mvm->first_agg_queue; | |
460 | else | |
461 | hw->queues = IEEE80211_MAX_QUEUES; | |
398e8c6c | 462 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
463 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
464 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
339b3086 ES |
465 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
466 | IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; | |
371a17ed JB |
467 | |
468 | hw->radiotap_timestamp.units_pos = | |
469 | IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | | |
470 | IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; | |
471 | /* this is the case for CCK frames, it's better (only 8) for OFDM */ | |
472 | hw->radiotap_timestamp.accuracy = 22; | |
473 | ||
8ca151b5 | 474 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
848955cc JB |
475 | hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
476 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 | 477 | |
8e160ab8 | 478 | BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); |
5f4c02e2 JB |
479 | memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); |
480 | hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); | |
481 | hw->wiphy->cipher_suites = mvm->ciphers; | |
482 | ||
2a53d166 AB |
483 | if (iwl_mvm_has_new_rx_api(mvm)) { |
484 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
485 | WLAN_CIPHER_SUITE_GCMP; | |
486 | hw->wiphy->n_cipher_suites++; | |
487 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
488 | WLAN_CIPHER_SUITE_GCMP_256; | |
489 | hw->wiphy->n_cipher_suites++; | |
490 | } | |
491 | ||
4b87e5af LC |
492 | /* Enable 11w if software crypto is not enabled (as the |
493 | * firmware will interpret some mgmt packets, so enabling it | |
494 | * with software crypto isn't safe). | |
8ca151b5 | 495 | */ |
3b37f4c9 | 496 | if (!iwlwifi_mod_params.swcrypto) { |
30686bf7 | 497 | ieee80211_hw_set(hw, MFP_CAPABLE); |
5f4c02e2 JB |
498 | mvm->ciphers[hw->wiphy->n_cipher_suites] = |
499 | WLAN_CIPHER_SUITE_AES_CMAC; | |
500 | hw->wiphy->n_cipher_suites++; | |
8e160ab8 AB |
501 | if (iwl_mvm_has_new_rx_api(mvm)) { |
502 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
503 | WLAN_CIPHER_SUITE_BIP_GMAC_128; | |
504 | hw->wiphy->n_cipher_suites++; | |
505 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
506 | WLAN_CIPHER_SUITE_BIP_GMAC_256; | |
507 | hw->wiphy->n_cipher_suites++; | |
508 | } | |
5f4c02e2 JB |
509 | } |
510 | ||
511 | /* currently FW API supports only one optional cipher scheme */ | |
512 | if (mvm->fw->cs[0].cipher) { | |
24ddddf3 JB |
513 | const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; |
514 | struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; | |
515 | ||
5f4c02e2 | 516 | mvm->hw->n_cipher_schemes = 1; |
24ddddf3 JB |
517 | |
518 | cs->cipher = le32_to_cpu(fwcs->cipher); | |
519 | cs->iftype = BIT(NL80211_IFTYPE_STATION); | |
520 | cs->hdr_len = fwcs->hdr_len; | |
521 | cs->pn_len = fwcs->pn_len; | |
522 | cs->pn_off = fwcs->pn_off; | |
523 | cs->key_idx_off = fwcs->key_idx_off; | |
524 | cs->key_idx_mask = fwcs->key_idx_mask; | |
525 | cs->key_idx_shift = fwcs->key_idx_shift; | |
526 | cs->mic_len = fwcs->mic_len; | |
527 | ||
528 | mvm->hw->cipher_schemes = mvm->cs; | |
529 | mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; | |
5f4c02e2 JB |
530 | hw->wiphy->n_cipher_suites++; |
531 | } | |
8ca151b5 | 532 | |
30686bf7 | 533 | ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); |
1f940386 LC |
534 | hw->wiphy->features |= |
535 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
3db93420 JB |
536 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | |
537 | NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
fb98be5e | 538 | |
8ca151b5 JB |
539 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
540 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 541 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
542 | |
543 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
544 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
545 | BIT(NL80211_IFTYPE_AP) | | |
546 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
547 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
548 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 549 | |
a2f73b6c | 550 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
551 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
552 | if (iwl_mvm_is_lar_supported(mvm)) | |
553 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
554 | else | |
555 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
556 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 557 | |
4b87e5af | 558 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; |
94bbed72 | 559 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 560 | |
8ca151b5 JB |
561 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
562 | hw->wiphy->n_iface_combinations = | |
563 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
564 | ||
c451e6d4 | 565 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 566 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
567 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
568 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
569 | |
570 | /* Extract MAC address */ | |
571 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
572 | hw->wiphy->addresses = mvm->addresses; | |
573 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
574 | |
575 | /* Extract additional MAC addresses if available */ | |
576 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
577 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
578 | ||
579 | for (i = 1; i < num_mac; i++) { | |
580 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 581 | ETH_ALEN); |
831e85f3 | 582 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
583 | hw->wiphy->n_addresses++; |
584 | } | |
585 | ||
fe0f2de3 IP |
586 | iwl_mvm_reset_phy_ctxts(mvm); |
587 | ||
999d2568 | 588 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
20f1a5de | 589 | |
8ca151b5 JB |
590 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
591 | ||
c7d42480 | 592 | BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); |
507e4cda LC |
593 | BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || |
594 | IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); | |
595 | ||
859d914c | 596 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
507e4cda LC |
597 | mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; |
598 | else | |
599 | mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; | |
600 | ||
57fbcce3 JB |
601 | if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) |
602 | hw->wiphy->bands[NL80211_BAND_2GHZ] = | |
603 | &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; | |
604 | if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { | |
605 | hw->wiphy->bands[NL80211_BAND_5GHZ] = | |
606 | &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; | |
8ca151b5 | 607 | |
859d914c JB |
608 | if (fw_has_capa(&mvm->fw->ucode_capa, |
609 | IWL_UCODE_TLV_CAPA_BEAMFORMER) && | |
610 | fw_has_api(&mvm->fw->ucode_capa, | |
611 | IWL_UCODE_TLV_API_LQ_SS_PARAMS)) | |
57fbcce3 | 612 | hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= |
3d44eebf ES |
613 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; |
614 | } | |
615 | ||
8ca151b5 JB |
616 | hw->wiphy->hw_version = mvm->trans->hw_id; |
617 | ||
ade50652 | 618 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
619 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
620 | else | |
621 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
622 | ||
ca986ad9 | 623 | hw->wiphy->max_sched_scan_reqs = 1; |
9954b37c EG |
624 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; |
625 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
626 | /* we create the 802.11 header and zero length SSID IE. */ | |
627 | hw->wiphy->max_sched_scan_ie_len = | |
628 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
cd55ccea AS |
629 | hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; |
630 | hw->wiphy->max_sched_scan_plan_interval = U16_MAX; | |
631 | ||
632 | /* | |
633 | * the firmware uses u8 for num of iterations, but 0xff is saved for | |
634 | * infinite loop, so the maximum number of iterations is actually 254. | |
635 | */ | |
636 | hw->wiphy->max_sched_scan_plan_iterations = 254; | |
35a000b7 | 637 | |
8ca151b5 | 638 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 639 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 | 640 | NL80211_FEATURE_P2P_GO_OPPPS | |
a904a08b | 641 | NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | |
0d8614b4 | 642 | NL80211_FEATURE_DYNAMIC_SMPS | |
9b5452fd EG |
643 | NL80211_FEATURE_STATIC_SMPS | |
644 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 645 | |
859d914c JB |
646 | if (fw_has_capa(&mvm->fw->ucode_capa, |
647 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) | |
f1daa00e | 648 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; |
859d914c JB |
649 | if (fw_has_capa(&mvm->fw->ucode_capa, |
650 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) | |
226bcd48 | 651 | hw->wiphy->features |= NL80211_FEATURE_QUIET; |
f1daa00e | 652 | |
859d914c JB |
653 | if (fw_has_capa(&mvm->fw->ucode_capa, |
654 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) | |
73897bd1 AO |
655 | hw->wiphy->features |= |
656 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
657 | ||
859d914c JB |
658 | if (fw_has_capa(&mvm->fw->ucode_capa, |
659 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) | |
73897bd1 AO |
660 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; |
661 | ||
aacf8f18 AS |
662 | if (fw_has_api(&mvm->fw->ucode_capa, |
663 | IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { | |
664 | wiphy_ext_feature_set(hw->wiphy, | |
665 | NL80211_EXT_FEATURE_SCAN_START_TIME); | |
666 | wiphy_ext_feature_set(hw->wiphy, | |
667 | NL80211_EXT_FEATURE_BSS_PARENT_TSF); | |
668 | wiphy_ext_feature_set(hw->wiphy, | |
669 | NL80211_EXT_FEATURE_SET_SCAN_DWELL); | |
670 | } | |
671 | ||
8ca151b5 JB |
672 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
673 | ||
674 | #ifdef CONFIG_PM_SLEEP | |
d15a747f EP |
675 | if (iwl_mvm_is_d0i3_supported(mvm) && |
676 | device_can_wakeup(mvm->trans->dev)) { | |
677 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
678 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
679 | } |
680 | ||
eef187a7 | 681 | if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec && |
8ca151b5 JB |
682 | mvm->trans->ops->d3_suspend && |
683 | mvm->trans->ops->d3_resume && | |
684 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
685 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
686 | WIPHY_WOWLAN_DISCONNECT | | |
687 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
688 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
689 | WIPHY_WOWLAN_NET_DETECT; | |
3b37f4c9 | 690 | if (!iwlwifi_mod_params.swcrypto) |
964dc9e2 JB |
691 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
692 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
693 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
694 | ||
695 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
696 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
697 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 698 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 JB |
699 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
700 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
701 | } |
702 | #endif | |
703 | ||
77736923 EP |
704 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
705 | /* assign default bcast filtering configuration */ | |
706 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
707 | #endif | |
708 | ||
8ca151b5 JB |
709 | ret = iwl_mvm_leds_init(mvm); |
710 | if (ret) | |
711 | return ret; | |
712 | ||
859d914c JB |
713 | if (fw_has_capa(&mvm->fw->ucode_capa, |
714 | IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { | |
d8f1c515 AN |
715 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); |
716 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
7c4f0843 | 717 | ieee80211_hw_set(hw, TDLS_WIDER_BW); |
d8f1c515 AN |
718 | } |
719 | ||
859d914c JB |
720 | if (fw_has_capa(&mvm->fw->ucode_capa, |
721 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { | |
1d3c3f63 AN |
722 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); |
723 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
724 | } | |
725 | ||
93190fb0 | 726 | hw->netdev_features |= mvm->cfg->features; |
5e6a98dc SS |
727 | if (!iwl_mvm_is_csum_supported(mvm)) { |
728 | hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | | |
729 | NETIF_F_RXCSUM); | |
730 | /* We may support SW TX CSUM */ | |
731 | if (IWL_MVM_SW_TX_CSUM_OFFLOAD) | |
732 | hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; | |
733 | } | |
41837ca9 | 734 | |
b7327d89 EG |
735 | ret = ieee80211_register_hw(mvm->hw); |
736 | if (ret) | |
737 | iwl_mvm_leds_exit(mvm); | |
de8ba41b | 738 | mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE; |
b7327d89 | 739 | |
91b08c2d AE |
740 | if (mvm->cfg->vht_mu_mimo_supported) |
741 | wiphy_ext_feature_set(hw->wiphy, | |
742 | NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); | |
743 | ||
b7327d89 | 744 | return ret; |
8ca151b5 JB |
745 | } |
746 | ||
b2492501 AN |
747 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
748 | struct ieee80211_sta *sta, | |
749 | struct sk_buff *skb) | |
750 | { | |
751 | struct iwl_mvm_sta *mvmsta; | |
752 | bool defer = false; | |
753 | ||
754 | /* | |
755 | * double check the IN_D0I3 flag both before and after | |
756 | * taking the spinlock, in order to prevent taking | |
757 | * the spinlock when not needed. | |
758 | */ | |
759 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
760 | return false; | |
761 | ||
762 | spin_lock(&mvm->d0i3_tx_lock); | |
763 | /* | |
764 | * testing the flag again ensures the skb dequeue | |
765 | * loop (on d0i3 exit) hasn't run yet. | |
766 | */ | |
767 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
768 | goto out; | |
769 | ||
770 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
0ae98812 | 771 | if (mvmsta->sta_id == IWL_MVM_INVALID_STA || |
b2492501 AN |
772 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) |
773 | goto out; | |
774 | ||
775 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
776 | ieee80211_stop_queues(mvm->hw); | |
777 | ||
778 | /* trigger wakeup */ | |
779 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
780 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
781 | ||
782 | defer = true; | |
783 | out: | |
784 | spin_unlock(&mvm->d0i3_tx_lock); | |
785 | return defer; | |
786 | } | |
787 | ||
8ca151b5 JB |
788 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
789 | struct ieee80211_tx_control *control, | |
790 | struct sk_buff *skb) | |
791 | { | |
792 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
793 | struct ieee80211_sta *sta = control->sta; |
794 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
795 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 796 | |
9ee718aa EL |
797 | if (iwl_mvm_is_radio_killed(mvm)) { |
798 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
799 | goto drop; |
800 | } | |
801 | ||
398e8c6c | 802 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
803 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
804 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
805 | goto drop; |
806 | ||
3e56eadf JB |
807 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
808 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
809 | ieee80211_is_mgmt(hdr->frame_control) && | |
810 | !ieee80211_is_deauth(hdr->frame_control) && | |
811 | !ieee80211_is_disassoc(hdr->frame_control) && | |
812 | !ieee80211_is_action(hdr->frame_control))) | |
813 | sta = NULL; | |
814 | ||
815 | if (sta) { | |
b2492501 AN |
816 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
817 | return; | |
3e56eadf | 818 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
819 | goto drop; |
820 | return; | |
821 | } | |
822 | ||
823 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
824 | goto drop; | |
825 | return; | |
826 | drop: | |
827 | ieee80211_free_txskb(hw, skb); | |
828 | } | |
829 | ||
205e2210 EG |
830 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
831 | { | |
832 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
833 | return false; | |
834 | return true; | |
835 | } | |
836 | ||
837 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
838 | { | |
839 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
840 | return false; | |
841 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
842 | return true; | |
843 | ||
844 | /* enabled by default */ | |
845 | return true; | |
846 | } | |
847 | ||
4203263d EG |
848 | #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ |
849 | do { \ | |
850 | if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ | |
851 | break; \ | |
852 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ | |
853 | } while (0) | |
854 | ||
855 | static void | |
856 | iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
857 | struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, | |
858 | enum ieee80211_ampdu_mlme_action action) | |
859 | { | |
860 | struct iwl_fw_dbg_trigger_tlv *trig; | |
861 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
862 | ||
863 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
864 | return; | |
865 | ||
866 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
867 | ba_trig = (void *)trig->data; | |
868 | ||
869 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
870 | return; | |
871 | ||
872 | switch (action) { | |
873 | case IEEE80211_AMPDU_TX_OPERATIONAL: { | |
874 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
875 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
876 | ||
877 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, | |
878 | "TX AGG START: MAC %pM tid %d ssn %d\n", | |
879 | sta->addr, tid, tid_data->ssn); | |
880 | break; | |
881 | } | |
882 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
883 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, | |
884 | "TX AGG STOP: MAC %pM tid %d\n", | |
885 | sta->addr, tid); | |
886 | break; | |
887 | case IEEE80211_AMPDU_RX_START: | |
888 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, | |
889 | "RX AGG START: MAC %pM tid %d ssn %d\n", | |
890 | sta->addr, tid, rx_ba_ssn); | |
891 | break; | |
892 | case IEEE80211_AMPDU_RX_STOP: | |
893 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, | |
894 | "RX AGG STOP: MAC %pM tid %d\n", | |
895 | sta->addr, tid); | |
896 | break; | |
897 | default: | |
898 | break; | |
899 | } | |
900 | } | |
901 | ||
8ca151b5 JB |
902 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
903 | struct ieee80211_vif *vif, | |
50ea05ef | 904 | struct ieee80211_ampdu_params *params) |
8ca151b5 JB |
905 | { |
906 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
907 | int ret; | |
b2492501 | 908 | bool tx_agg_ref = false; |
50ea05ef SS |
909 | struct ieee80211_sta *sta = params->sta; |
910 | enum ieee80211_ampdu_mlme_action action = params->action; | |
911 | u16 tid = params->tid; | |
912 | u16 *ssn = ¶ms->ssn; | |
913 | u8 buf_size = params->buf_size; | |
bb81bb68 | 914 | bool amsdu = params->amsdu; |
10b2b201 | 915 | u16 timeout = params->timeout; |
8ca151b5 JB |
916 | |
917 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
918 | sta->addr, tid, action); | |
919 | ||
920 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
921 | return -EACCES; | |
922 | ||
b2492501 | 923 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
924 | switch (action) { |
925 | case IEEE80211_AMPDU_TX_START: | |
926 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
927 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
928 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
929 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 930 | /* |
9256c205 EP |
931 | * for tx start, wait synchronously until D0i3 exit to |
932 | * get the correct sequence number for the tid. | |
933 | * additionally, some other ampdu actions use direct | |
934 | * target access, which is not handled automatically | |
935 | * by the trans layer (unlike commands), so wait for | |
936 | * d0i3 exit in these cases as well. | |
b2492501 | 937 | */ |
d40fc489 GG |
938 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
939 | if (ret) | |
940 | return ret; | |
941 | ||
942 | tx_agg_ref = true; | |
9256c205 EP |
943 | break; |
944 | default: | |
945 | break; | |
b2492501 AN |
946 | } |
947 | ||
8ca151b5 JB |
948 | mutex_lock(&mvm->mutex); |
949 | ||
950 | switch (action) { | |
951 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 952 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
953 | ret = -EINVAL; |
954 | break; | |
955 | } | |
10b2b201 SS |
956 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, |
957 | timeout); | |
8ca151b5 JB |
958 | break; |
959 | case IEEE80211_AMPDU_RX_STOP: | |
10b2b201 SS |
960 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, |
961 | timeout); | |
8ca151b5 JB |
962 | break; |
963 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 964 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
965 | ret = -EINVAL; |
966 | break; | |
967 | } | |
8ca151b5 JB |
968 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
969 | break; | |
970 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
971 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
972 | break; | |
8ca151b5 JB |
973 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
974 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 975 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
976 | break; |
977 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
bb81bb68 EG |
978 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, |
979 | buf_size, amsdu); | |
8ca151b5 JB |
980 | break; |
981 | default: | |
982 | WARN_ON_ONCE(1); | |
983 | ret = -EINVAL; | |
984 | break; | |
985 | } | |
4203263d EG |
986 | |
987 | if (!ret) { | |
988 | u16 rx_ba_ssn = 0; | |
989 | ||
990 | if (action == IEEE80211_AMPDU_RX_START) | |
991 | rx_ba_ssn = *ssn; | |
992 | ||
993 | iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, | |
994 | rx_ba_ssn, action); | |
995 | } | |
8ca151b5 JB |
996 | mutex_unlock(&mvm->mutex); |
997 | ||
b2492501 AN |
998 | /* |
999 | * If the tid is marked as started, we won't use it for offloaded | |
1000 | * traffic on the next D0i3 entry. It's safe to unref. | |
1001 | */ | |
1002 | if (tx_agg_ref) | |
1003 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
1004 | ||
8ca151b5 JB |
1005 | return ret; |
1006 | } | |
1007 | ||
1008 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
1009 | struct ieee80211_vif *vif) | |
1010 | { | |
1011 | struct iwl_mvm *mvm = data; | |
1012 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1013 | ||
1014 | mvmvif->uploaded = false; | |
0ae98812 | 1015 | mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; |
8ca151b5 | 1016 | |
8ca151b5 JB |
1017 | spin_lock_bh(&mvm->time_event_lock); |
1018 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
1019 | spin_unlock_bh(&mvm->time_event_lock); | |
1020 | ||
fe0f2de3 | 1021 | mvmvif->phy_ctxt = NULL; |
8a275bad | 1022 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
1023 | } |
1024 | ||
1025 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
1026 | { | |
58629d9d JB |
1027 | /* clear the D3 reconfig, we only need it to avoid dumping a |
1028 | * firmware coredump on reconfiguration, we shouldn't do that | |
1029 | * on D3->D0 transition | |
1030 | */ | |
b6eaa45a EG |
1031 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
1032 | mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; | |
58629d9d | 1033 | iwl_mvm_fw_error_dump(mvm); |
b6eaa45a | 1034 | } |
1bd3cbc1 | 1035 | |
744cb695 EP |
1036 | /* cleanup all stale references (scan, roc), but keep the |
1037 | * ucode_down ref until reconfig is complete | |
1038 | */ | |
1039 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1040 | ||
fcb6b92a | 1041 | iwl_mvm_stop_device(mvm); |
8ca151b5 | 1042 | |
9af91f46 | 1043 | mvm->scan_status = 0; |
b1873300 | 1044 | mvm->ps_disabled = false; |
31b8b343 | 1045 | mvm->calibrating = false; |
8ca151b5 JB |
1046 | |
1047 | /* just in case one was running */ | |
305d236e | 1048 | iwl_mvm_cleanup_roc_te(mvm); |
8ca151b5 JB |
1049 | ieee80211_remain_on_channel_expired(mvm->hw); |
1050 | ||
737719fe AN |
1051 | /* |
1052 | * cleanup all interfaces, even inactive ones, as some might have | |
1053 | * gone down during the HW restart | |
1054 | */ | |
1055 | ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); | |
8ca151b5 | 1056 | |
fe0f2de3 | 1057 | mvm->p2p_device_vif = NULL; |
0ae98812 | 1058 | mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; |
fe0f2de3 IP |
1059 | |
1060 | iwl_mvm_reset_phy_ctxts(mvm); | |
9c3deeb5 | 1061 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
8ca151b5 | 1062 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); |
24afba76 | 1063 | memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames)); |
a0f6bf2a | 1064 | memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
8a275bad | 1065 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
8a275bad | 1066 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); |
8ca151b5 JB |
1067 | |
1068 | ieee80211_wake_queues(mvm->hw); | |
1069 | ||
228670b2 EP |
1070 | /* clear any stale d0i3 state */ |
1071 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1072 | ||
8ca151b5 | 1073 | mvm->vif_count = 0; |
113a0447 | 1074 | mvm->rx_ba_sessions = 0; |
d2709ad7 | 1075 | mvm->fw_dbg_conf = FW_DBG_INVALID; |
91a8bcde JB |
1076 | |
1077 | /* keep statistics ticking */ | |
1078 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1079 | } |
1080 | ||
a0a09243 | 1081 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1082 | { |
8ca151b5 JB |
1083 | int ret; |
1084 | ||
a0a09243 | 1085 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 1086 | |
a42b2af3 LC |
1087 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { |
1088 | /* Clean up some internal and mac80211 state on restart */ | |
8ca151b5 | 1089 | iwl_mvm_restart_cleanup(mvm); |
a42b2af3 LC |
1090 | } else { |
1091 | /* Hold the reference to prevent runtime suspend while | |
1092 | * the start procedure runs. It's a bit confusing | |
1093 | * that the UCODE_DOWN reference is taken, but it just | |
1094 | * means "UCODE is not UP yet". ( TODO: rename this | |
1095 | * reference). | |
1096 | */ | |
1097 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1098 | } | |
8ca151b5 | 1099 | ret = iwl_mvm_up(mvm); |
c47af22a JB |
1100 | |
1101 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1102 | /* Something went wrong - we need to finish some cleanup | |
1103 | * that normally iwl_mvm_mac_restart_complete() below | |
1104 | * would do. | |
1105 | */ | |
1106 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1107 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1108 | } | |
1109 | ||
a0a09243 LC |
1110 | return ret; |
1111 | } | |
1112 | ||
1113 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1114 | { | |
1115 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1116 | int ret; | |
1117 | ||
37948fcf EP |
1118 | /* Some hw restart cleanups must not hold the mutex */ |
1119 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1120 | /* | |
1121 | * Make sure we are out of d0i3. This is needed | |
1122 | * to make sure the reference accounting is correct | |
1123 | * (and there is no stale d0i3_exit_work). | |
1124 | */ | |
1125 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1126 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1127 | &mvm->status), | |
1128 | HZ); | |
1129 | } | |
1130 | ||
a0a09243 LC |
1131 | mutex_lock(&mvm->mutex); |
1132 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1133 | mutex_unlock(&mvm->mutex); |
1134 | ||
1135 | return ret; | |
1136 | } | |
1137 | ||
cf2c92d8 | 1138 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1139 | { |
8ca151b5 JB |
1140 | int ret; |
1141 | ||
1142 | mutex_lock(&mvm->mutex); | |
1143 | ||
1144 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1145 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
e7afe89f | 1146 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1147 | if (ret) |
1148 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1149 | ret); | |
1150 | ||
7498cf4c EP |
1151 | /* allow transport/FW low power modes */ |
1152 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1153 | ||
cbd2ae2d AN |
1154 | /* |
1155 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1156 | * of packets the FW sent out, so we must reconnect. | |
1157 | */ | |
1158 | iwl_mvm_teardown_tdls_peers(mvm); | |
1159 | ||
8ca151b5 JB |
1160 | mutex_unlock(&mvm->mutex); |
1161 | } | |
1162 | ||
088070a2 EP |
1163 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1164 | { | |
b7282643 LC |
1165 | if (iwl_mvm_is_d0i3_supported(mvm) && |
1166 | iwl_mvm_enter_d0i3_on_suspend(mvm)) | |
1167 | WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1168 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1169 | &mvm->status), | |
1170 | HZ), | |
1171 | "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1172 | } |
1173 | ||
cf2c92d8 EP |
1174 | static void |
1175 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1176 | enum ieee80211_reconfig_type reconfig_type) | |
1177 | { | |
1178 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1179 | ||
1180 | switch (reconfig_type) { | |
1181 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1182 | iwl_mvm_restart_complete(mvm); | |
1183 | break; | |
1184 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1185 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1186 | break; |
1187 | } | |
1188 | } | |
1189 | ||
a0a09243 | 1190 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1191 | { |
a0a09243 | 1192 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1193 | |
91a8bcde JB |
1194 | /* firmware counters are obviously reset now, but we shouldn't |
1195 | * partially track so also clear the fw_reset_accu counters. | |
1196 | */ | |
1197 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1198 | ||
8ca151b5 JB |
1199 | /* async_handlers_wk is now blocked */ |
1200 | ||
1201 | /* | |
1202 | * The work item could be running or queued if the | |
1203 | * ROC time event stops just as we get here. | |
1204 | */ | |
c779273b | 1205 | flush_work(&mvm->roc_done_wk); |
8ca151b5 | 1206 | |
fcb6b92a | 1207 | iwl_mvm_stop_device(mvm); |
8ca151b5 JB |
1208 | |
1209 | iwl_mvm_async_handlers_purge(mvm); | |
1210 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1211 | ||
1212 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1213 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1214 | |
0a79a0c0 EP |
1215 | /* |
1216 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1217 | * won't be called in this case). | |
8b2b9fbf AN |
1218 | * But make sure to cleanup interfaces that have gone down before/during |
1219 | * HW restart was requested. | |
0a79a0c0 | 1220 | */ |
8b2b9fbf AN |
1221 | if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
1222 | ieee80211_iterate_interfaces(mvm->hw, 0, | |
1223 | iwl_mvm_cleanup_iterator, mvm); | |
0a79a0c0 | 1224 | |
963221be AB |
1225 | /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
1226 | * make sure there's nothing left there and warn if any is found. | |
1227 | */ | |
859d914c | 1228 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
963221be AB |
1229 | int i; |
1230 | ||
507e4cda | 1231 | for (i = 0; i < mvm->max_scans; i++) { |
6185af2a LC |
1232 | if (WARN_ONCE(mvm->scan_uid_status[i], |
1233 | "UMAC scan UID %d status was not cleaned\n", | |
1234 | i)) | |
1235 | mvm->scan_uid_status[i] = 0; | |
963221be AB |
1236 | } |
1237 | } | |
a0a09243 | 1238 | } |
bc44886d | 1239 | |
a0a09243 LC |
1240 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1241 | { | |
1242 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1243 | ||
1244 | flush_work(&mvm->d0i3_exit_work); | |
1245 | flush_work(&mvm->async_handlers_wk); | |
24afba76 | 1246 | flush_work(&mvm->add_stream_wk); |
771147b0 JB |
1247 | |
1248 | /* | |
1249 | * Lock and clear the firmware running bit here already, so that | |
1250 | * new commands coming in elsewhere, e.g. from debugfs, will not | |
1251 | * be able to proceed. This is important here because one of those | |
1252 | * debugfs files causes the fw_dump_wk to be triggered, and if we | |
1253 | * don't stop debugfs accesses before canceling that it could be | |
1254 | * retriggered after we flush it but before we've cleared the bit. | |
1255 | */ | |
1256 | clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); | |
1257 | ||
d2709ad7 | 1258 | cancel_delayed_work_sync(&mvm->fw_dump_wk); |
d3a108a4 | 1259 | cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); |
69e04642 | 1260 | cancel_delayed_work_sync(&mvm->scan_timeout_dwork); |
b6eaa45a | 1261 | iwl_mvm_free_fw_dump_desc(mvm); |
a0a09243 LC |
1262 | |
1263 | mutex_lock(&mvm->mutex); | |
1264 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1265 | mutex_unlock(&mvm->mutex); |
1266 | ||
1267 | /* | |
1268 | * The worker might have been waiting for the mutex, let it run and | |
1269 | * discover that its list is now empty. | |
1270 | */ | |
1271 | cancel_work_sync(&mvm->async_handlers_wk); | |
1272 | } | |
1273 | ||
fe0f2de3 IP |
1274 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1275 | { | |
1276 | u16 i; | |
1277 | ||
1278 | lockdep_assert_held(&mvm->mutex); | |
1279 | ||
1280 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1281 | if (!mvm->phy_ctxts[i].ref) | |
1282 | return &mvm->phy_ctxts[i]; | |
1283 | ||
1284 | IWL_ERR(mvm, "No available PHY context\n"); | |
1285 | return NULL; | |
1286 | } | |
1287 | ||
d44c3fe6 AA |
1288 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1289 | s16 tx_power) | |
1290 | { | |
1291 | struct iwl_dev_tx_power_cmd cmd = { | |
4b87e5af LC |
1292 | .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), |
1293 | .v3.mac_context_id = | |
d44c3fe6 | 1294 | cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), |
4b87e5af | 1295 | .v3.pwr_restriction = cpu_to_le16(8 * tx_power), |
d44c3fe6 | 1296 | }; |
da03f029 | 1297 | int len = sizeof(cmd); |
d44c3fe6 | 1298 | |
d44c3fe6 | 1299 | if (tx_power == IWL_DEFAULT_MAX_TX_POWER) |
4b87e5af | 1300 | cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); |
d44c3fe6 | 1301 | |
55bfa4b9 LC |
1302 | if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) |
1303 | len = sizeof(cmd.v3); | |
da03f029 JB |
1304 | |
1305 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); | |
d44c3fe6 AA |
1306 | } |
1307 | ||
8ca151b5 JB |
1308 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1309 | struct ieee80211_vif *vif) | |
1310 | { | |
1311 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1312 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1313 | int ret; | |
1314 | ||
aa5e1832 EG |
1315 | mvmvif->mvm = mvm; |
1316 | ||
d40fc489 GG |
1317 | /* |
1318 | * make sure D0i3 exit is completed, otherwise a target access | |
1319 | * during tx queue configuration could be done when still in | |
1320 | * D0i3 state. | |
1321 | */ | |
1322 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1323 | if (ret) | |
1324 | return ret; | |
1325 | ||
8ca151b5 JB |
1326 | /* |
1327 | * Not much to do here. The stack will not allow interface | |
1328 | * types or combinations that we didn't advertise, so we | |
1329 | * don't really have to check the types. | |
1330 | */ | |
1331 | ||
1332 | mutex_lock(&mvm->mutex); | |
1333 | ||
33cef925 JB |
1334 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1335 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1336 | mvmvif->beacon_stats.accu_num_beacons += | |
1337 | mvmvif->beacon_stats.num_beacons; | |
1338 | ||
e89044d7 | 1339 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1340 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1341 | if (ret) | |
1342 | goto out_unlock; | |
1343 | ||
1c2abf72 | 1344 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1345 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1346 | mvm->vif_count++; | |
ea183d02 | 1347 | |
8ca151b5 JB |
1348 | /* |
1349 | * The AP binding flow can be done only after the beacon | |
1350 | * template is configured (which happens only in the mac80211 | |
1351 | * start_ap() flow), and adding the broadcast station can happen | |
1352 | * only after the binding. | |
1353 | * In addition, since modifying the MAC before adding a bcast | |
1354 | * station is not allowed by the FW, delay the adding of MAC context to | |
1355 | * the point where we can also add the bcast station. | |
1356 | * In short: there's not much we can do at this point, other than | |
1357 | * allocating resources :) | |
1358 | */ | |
5023d966 JB |
1359 | if (vif->type == NL80211_IFTYPE_AP || |
1360 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1361 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1362 | if (ret) { |
1363 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1364 | goto out_release; | |
1365 | } | |
1366 | ||
26d6c16b SS |
1367 | if (iwl_mvm_is_dqa_supported(mvm)) { |
1368 | /* | |
1369 | * Only queue for this station is the mcast queue, | |
1370 | * which shouldn't be in TFD mask anyway | |
1371 | */ | |
1372 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, | |
ced19f26 SS |
1373 | 0, vif->type, |
1374 | IWL_STA_MULTICAST); | |
26d6c16b SS |
1375 | if (ret) |
1376 | goto out_release; | |
1377 | } | |
1378 | ||
77740cb4 | 1379 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1380 | goto out_unlock; |
1381 | } | |
1382 | ||
93190fb0 AA |
1383 | mvmvif->features |= hw->netdev_features; |
1384 | ||
8ca151b5 JB |
1385 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1386 | if (ret) | |
1387 | goto out_release; | |
1388 | ||
999609f1 | 1389 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1390 | if (ret) |
fd66fc1c | 1391 | goto out_remove_mac; |
8ca151b5 | 1392 | |
7df15b1e | 1393 | /* beacon filtering */ |
a1022927 | 1394 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1395 | if (ret) |
1396 | goto out_remove_mac; | |
1397 | ||
7df15b1e | 1398 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1399 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1400 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1401 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1402 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1403 | } |
1404 | ||
8ca151b5 JB |
1405 | /* |
1406 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1407 | * so a dedicated PHY context is allocated to it and the corresponding | |
1408 | * MAC context is bound to it at this stage. | |
1409 | */ | |
1410 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1411 | |
fe0f2de3 IP |
1412 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1413 | if (!mvmvif->phy_ctxt) { | |
1414 | ret = -ENOSPC; | |
bd3351ba | 1415 | goto out_free_bf; |
fe0f2de3 | 1416 | } |
8ca151b5 | 1417 | |
53a9d61e | 1418 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1419 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1420 | if (ret) | |
53a9d61e | 1421 | goto out_unref_phy; |
8ca151b5 | 1422 | |
013290aa | 1423 | ret = iwl_mvm_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
1424 | if (ret) |
1425 | goto out_unbind; | |
1426 | ||
1427 | /* Save a pointer to p2p device vif, so it can later be used to | |
1428 | * update the p2p device MAC when a GO is started/stopped */ | |
1429 | mvm->p2p_device_vif = vif; | |
1430 | } | |
1431 | ||
63494374 | 1432 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1433 | goto out_unlock; |
1434 | ||
1435 | out_unbind: | |
1436 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1437 | out_unref_phy: |
fe0f2de3 | 1438 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1439 | out_free_bf: |
1440 | if (mvm->bf_allowed_vif == mvmvif) { | |
1441 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1442 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1443 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1444 | } |
8ca151b5 JB |
1445 | out_remove_mac: |
1446 | mvmvif->phy_ctxt = NULL; | |
1447 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1448 | out_release: | |
5ee2b215 AB |
1449 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1450 | mvm->vif_count--; | |
1c2abf72 | 1451 | |
8ca151b5 JB |
1452 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1453 | out_unlock: | |
1454 | mutex_unlock(&mvm->mutex); | |
1455 | ||
d40fc489 GG |
1456 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1457 | ||
8ca151b5 JB |
1458 | return ret; |
1459 | } | |
1460 | ||
38a12b5b JB |
1461 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1462 | struct ieee80211_vif *vif) | |
8ca151b5 | 1463 | { |
d92b732e | 1464 | u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
8ca151b5 | 1465 | |
d49394a1 | 1466 | if (tfd_msk && !iwl_mvm_is_dqa_supported(mvm)) { |
fe92e32a EG |
1467 | /* |
1468 | * mac80211 first removes all the stations of the vif and | |
1469 | * then removes the vif. When it removes a station it also | |
1470 | * flushes the AMPDU session. So by now, all the AMPDU sessions | |
1471 | * of all the stations of this vif are closed, and the queues | |
1472 | * of these AMPDU sessions are properly closed. | |
1473 | * We still need to take care of the shared queues of the vif. | |
1474 | * Flush them here. | |
d49394a1 SS |
1475 | * For DQA mode there is no need - broacast and multicast queue |
1476 | * are flushed separately. | |
fe92e32a | 1477 | */ |
8ca151b5 | 1478 | mutex_lock(&mvm->mutex); |
5888a40c | 1479 | iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); |
8ca151b5 | 1480 | mutex_unlock(&mvm->mutex); |
fe92e32a EG |
1481 | |
1482 | /* | |
1483 | * There are transports that buffer a few frames in the host. | |
1484 | * For these, the flush above isn't enough since while we were | |
1485 | * flushing, the transport might have sent more frames to the | |
1486 | * device. To solve this, wait here until the transport is | |
1487 | * empty. Technically, this could have replaced the flush | |
1488 | * above, but flush is much faster than draining. So flush | |
1489 | * first, and drain to make sure we have no frames in the | |
1490 | * transport anymore. | |
1491 | * If a station still had frames on the shared queues, it is | |
1492 | * already marked as draining, so to complete the draining, we | |
1493 | * just need to wait until the transport is empty. | |
1494 | */ | |
a1a57877 | 1495 | iwl_trans_wait_tx_queues_empty(mvm->trans, tfd_msk); |
8ca151b5 JB |
1496 | } |
1497 | ||
1498 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1499 | /* | |
1500 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1501 | * We assume here that all the packets sent to the OFFCHANNEL | |
1502 | * queue are sent in ROC session. | |
1503 | */ | |
1504 | flush_work(&mvm->roc_done_wk); | |
1505 | } else { | |
1506 | /* | |
1507 | * By now, all the AC queues are empty. The AGG queues are | |
1508 | * empty too. We already got all the Tx responses for all the | |
1509 | * packets in the queues. The drain work can have been | |
0742a75a | 1510 | * triggered. Flush it. |
8ca151b5 JB |
1511 | */ |
1512 | flush_work(&mvm->sta_drained_wk); | |
1513 | } | |
38a12b5b JB |
1514 | } |
1515 | ||
1516 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1517 | struct ieee80211_vif *vif) | |
1518 | { | |
1519 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1520 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1521 | ||
1522 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1523 | |
1524 | mutex_lock(&mvm->mutex); | |
1525 | ||
7df15b1e HG |
1526 | if (mvm->bf_allowed_vif == mvmvif) { |
1527 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1528 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1529 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1530 | } |
1531 | ||
63494374 JB |
1532 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1533 | ||
8ca151b5 JB |
1534 | /* |
1535 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1536 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1537 | */ |
5023d966 JB |
1538 | if (vif->type == NL80211_IFTYPE_AP || |
1539 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1540 | #ifdef CONFIG_NL80211_TESTMODE |
1541 | if (vif == mvm->noa_vif) { | |
1542 | mvm->noa_vif = NULL; | |
1543 | mvm->noa_duration = 0; | |
1544 | } | |
1545 | #endif | |
26d6c16b | 1546 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); |
013290aa | 1547 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1548 | goto out_release; |
1549 | } | |
1550 | ||
1551 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1552 | mvm->p2p_device_vif = NULL; | |
013290aa | 1553 | iwl_mvm_rm_bcast_sta(mvm, vif); |
8ca151b5 | 1554 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1555 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1556 | mvmvif->phy_ctxt = NULL; |
1557 | } | |
1558 | ||
5ee2b215 | 1559 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1560 | mvm->vif_count--; |
1c2abf72 | 1561 | |
999609f1 | 1562 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1563 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1564 | ||
1565 | out_release: | |
1566 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1567 | mutex_unlock(&mvm->mutex); | |
1568 | } | |
1569 | ||
1570 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1571 | { |
8ca151b5 JB |
1572 | return 0; |
1573 | } | |
1574 | ||
e59647ea EP |
1575 | struct iwl_mvm_mc_iter_data { |
1576 | struct iwl_mvm *mvm; | |
1577 | int port_id; | |
1578 | }; | |
1579 | ||
1580 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1581 | struct ieee80211_vif *vif) | |
1582 | { | |
1583 | struct iwl_mvm_mc_iter_data *data = _data; | |
1584 | struct iwl_mvm *mvm = data->mvm; | |
1585 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1586 | int ret, len; | |
1587 | ||
1588 | /* if we don't have free ports, mcast frames will be dropped */ | |
1589 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1590 | return; | |
1591 | ||
1592 | if (vif->type != NL80211_IFTYPE_STATION || | |
1593 | !vif->bss_conf.assoc) | |
1594 | return; | |
1595 | ||
1596 | cmd->port_id = data->port_id++; | |
1597 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1598 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1599 | ||
1c4abec0 | 1600 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1601 | if (ret) |
1602 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1603 | } | |
1604 | ||
1605 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1606 | { | |
1607 | struct iwl_mvm_mc_iter_data iter_data = { | |
1608 | .mvm = mvm, | |
88f2fd73 MG |
1609 | }; |
1610 | ||
e59647ea EP |
1611 | lockdep_assert_held(&mvm->mutex); |
1612 | ||
1613 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1614 | return; | |
1615 | ||
1c4abec0 | 1616 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1617 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1618 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1619 | } |
1620 | ||
e59647ea EP |
1621 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1622 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1623 | { |
e59647ea EP |
1624 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1625 | struct iwl_mcast_filter_cmd *cmd; | |
1626 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1627 | int addr_count; |
1628 | bool pass_all; | |
e59647ea EP |
1629 | int len; |
1630 | ||
f3bd58f4 MS |
1631 | addr_count = netdev_hw_addr_list_count(mc_list); |
1632 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1633 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1634 | if (pass_all) | |
e59647ea | 1635 | addr_count = 0; |
e59647ea EP |
1636 | |
1637 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1638 | cmd = kzalloc(len, GFP_ATOMIC); | |
1639 | if (!cmd) | |
1640 | return 0; | |
1641 | ||
1642 | if (pass_all) { | |
1643 | cmd->pass_all = 1; | |
1644 | return (u64)(unsigned long)cmd; | |
1645 | } | |
1646 | ||
1647 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1648 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1649 | cmd->count, addr->addr); | |
1650 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1651 | addr->addr, ETH_ALEN); | |
1652 | cmd->count++; | |
1653 | } | |
1654 | ||
1655 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1656 | } |
1657 | ||
1658 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1659 | unsigned int changed_flags, | |
1660 | unsigned int *total_flags, | |
1661 | u64 multicast) | |
1662 | { | |
e59647ea EP |
1663 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1664 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1665 | |
e59647ea | 1666 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1667 | |
e59647ea EP |
1668 | /* replace previous configuration */ |
1669 | kfree(mvm->mcast_filter_cmd); | |
1670 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1671 | |
e59647ea EP |
1672 | if (!cmd) |
1673 | goto out; | |
51b6b9e0 | 1674 | |
e59647ea EP |
1675 | iwl_mvm_recalc_multicast(mvm); |
1676 | out: | |
1677 | mutex_unlock(&mvm->mutex); | |
1678 | *total_flags = 0; | |
51b6b9e0 EG |
1679 | } |
1680 | ||
effd1929 AO |
1681 | static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, |
1682 | struct ieee80211_vif *vif, | |
1683 | unsigned int filter_flags, | |
1684 | unsigned int changed_flags) | |
1685 | { | |
1686 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1687 | ||
1688 | /* We support only filter for probe requests */ | |
1689 | if (!(changed_flags & FIF_PROBE_REQ)) | |
1690 | return; | |
1691 | ||
1692 | /* Supported only for p2p client interfaces */ | |
1693 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || | |
1694 | !vif->p2p) | |
1695 | return; | |
1696 | ||
1697 | mutex_lock(&mvm->mutex); | |
1698 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1699 | mutex_unlock(&mvm->mutex); | |
1700 | } | |
1701 | ||
c87163b9 EP |
1702 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1703 | struct iwl_bcast_iter_data { | |
1704 | struct iwl_mvm *mvm; | |
1705 | struct iwl_bcast_filter_cmd *cmd; | |
1706 | u8 current_filter; | |
1707 | }; | |
1708 | ||
1709 | static void | |
1710 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1711 | const struct iwl_fw_bcast_filter *in_filter, | |
1712 | struct iwl_fw_bcast_filter *out_filter) | |
1713 | { | |
1714 | struct iwl_fw_bcast_filter_attr *attr; | |
1715 | int i; | |
1716 | ||
1717 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1718 | ||
1719 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1720 | attr = &out_filter->attrs[i]; | |
1721 | ||
1722 | if (!attr->mask) | |
1723 | break; | |
1724 | ||
2ee8f021 EP |
1725 | switch (attr->reserved1) { |
1726 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1727 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1728 | attr->mask = 0; | |
1729 | continue; | |
1730 | } | |
1731 | ||
1732 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1733 | break; | |
1734 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1735 | attr->val = *(__be32 *)&vif->addr[2]; | |
1736 | break; | |
1737 | default: | |
1738 | break; | |
1739 | } | |
1740 | attr->reserved1 = 0; | |
c87163b9 EP |
1741 | out_filter->num_attrs++; |
1742 | } | |
1743 | } | |
1744 | ||
1745 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1746 | struct ieee80211_vif *vif) | |
1747 | { | |
1748 | struct iwl_bcast_iter_data *data = _data; | |
1749 | struct iwl_mvm *mvm = data->mvm; | |
1750 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1751 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1752 | struct iwl_fw_bcast_mac *bcast_mac; | |
1753 | int i; | |
1754 | ||
1755 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1756 | return; | |
1757 | ||
1758 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1759 | ||
e48393e8 IP |
1760 | /* |
1761 | * enable filtering only for associated stations, but not for P2P | |
1762 | * Clients | |
1763 | */ | |
1764 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1765 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1766 | return; |
1767 | ||
1768 | bcast_mac->default_discard = 1; | |
1769 | ||
1770 | /* copy all configured filters */ | |
1771 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1772 | /* | |
1773 | * Make sure we don't exceed our filters limit. | |
1774 | * if there is still a valid filter to be configured, | |
1775 | * be on the safe side and just allow bcast for this mac. | |
1776 | */ | |
1777 | if (WARN_ON_ONCE(data->current_filter >= | |
1778 | ARRAY_SIZE(cmd->filters))) { | |
1779 | bcast_mac->default_discard = 0; | |
1780 | bcast_mac->attached_filters = 0; | |
1781 | break; | |
1782 | } | |
1783 | ||
1784 | iwl_mvm_set_bcast_filter(vif, | |
1785 | &mvm->bcast_filters[i], | |
1786 | &cmd->filters[data->current_filter]); | |
1787 | ||
1788 | /* skip current filter if it contains no attributes */ | |
1789 | if (!cmd->filters[data->current_filter].num_attrs) | |
1790 | continue; | |
1791 | ||
1792 | /* attach the filter to current mac */ | |
1793 | bcast_mac->attached_filters |= | |
1794 | cpu_to_le16(BIT(data->current_filter)); | |
1795 | ||
1796 | data->current_filter++; | |
1797 | } | |
1798 | } | |
1799 | ||
de06a59e EP |
1800 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1801 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1802 | { |
c87163b9 EP |
1803 | struct iwl_bcast_iter_data iter_data = { |
1804 | .mvm = mvm, | |
de06a59e | 1805 | .cmd = cmd, |
c87163b9 EP |
1806 | }; |
1807 | ||
3b8983b1 MS |
1808 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
1809 | return false; | |
1810 | ||
de06a59e EP |
1811 | memset(cmd, 0, sizeof(*cmd)); |
1812 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1813 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1814 | ||
1815 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1816 | /* use debugfs filters/macs if override is configured */ | |
1817 | if (mvm->dbgfs_bcast_filtering.override) { | |
1818 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1819 | sizeof(cmd->filters)); | |
1820 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1821 | sizeof(cmd->macs)); | |
1822 | return true; | |
1823 | } | |
1824 | #endif | |
c87163b9 EP |
1825 | |
1826 | /* if no filters are configured, do nothing */ | |
1827 | if (!mvm->bcast_filters) | |
de06a59e | 1828 | return false; |
c87163b9 EP |
1829 | |
1830 | /* configure and attach these filters for each associated sta vif */ | |
1831 | ieee80211_iterate_active_interfaces( | |
1832 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1833 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1834 | ||
de06a59e EP |
1835 | return true; |
1836 | } | |
34672bb3 EP |
1837 | |
1838 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) | |
de06a59e EP |
1839 | { |
1840 | struct iwl_bcast_filter_cmd cmd; | |
1841 | ||
1842 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1843 | return 0; | |
1844 | ||
1845 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1846 | return 0; | |
1847 | ||
a1022927 | 1848 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1849 | sizeof(cmd), &cmd); |
1850 | } | |
1851 | #else | |
34672bb3 | 1852 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) |
c87163b9 EP |
1853 | { |
1854 | return 0; | |
1855 | } | |
1856 | #endif | |
1857 | ||
a07a8f37 SS |
1858 | static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, |
1859 | struct ieee80211_vif *vif) | |
1860 | { | |
1861 | struct iwl_mu_group_mgmt_cmd cmd = {}; | |
1862 | ||
1863 | memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, | |
1864 | WLAN_MEMBERSHIP_LEN); | |
1865 | memcpy(cmd.user_position, vif->bss_conf.mu_group.position, | |
1866 | WLAN_USER_POSITION_LEN); | |
1867 | ||
1868 | return iwl_mvm_send_cmd_pdu(mvm, | |
1869 | WIDE_ID(DATA_PATH_GROUP, | |
1870 | UPDATE_MU_GROUPS_CMD), | |
1871 | 0, sizeof(cmd), &cmd); | |
1872 | } | |
1873 | ||
f92659a1 SS |
1874 | static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, |
1875 | struct ieee80211_vif *vif) | |
1876 | { | |
1877 | if (vif->mu_mimo_owner) { | |
1878 | struct iwl_mu_group_mgmt_notif *notif = _data; | |
1879 | ||
1880 | /* | |
1881 | * MU-MIMO Group Id action frame is little endian. We treat | |
1882 | * the data received from firmware as if it came from the | |
1883 | * action frame, so no conversion is needed. | |
1884 | */ | |
1885 | ieee80211_update_mu_groups(vif, | |
1886 | (u8 *)¬if->membership_status, | |
1887 | (u8 *)¬if->user_position); | |
1888 | } | |
1889 | } | |
1890 | ||
1891 | void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, | |
1892 | struct iwl_rx_cmd_buffer *rxb) | |
1893 | { | |
1894 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1895 | struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; | |
1896 | ||
1897 | ieee80211_iterate_active_interfaces_atomic( | |
1898 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1899 | iwl_mvm_mu_mimo_iface_iterator, notif); | |
1900 | } | |
1901 | ||
8ca151b5 JB |
1902 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1903 | struct ieee80211_vif *vif, | |
1904 | struct ieee80211_bss_conf *bss_conf, | |
1905 | u32 changes) | |
1906 | { | |
1907 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1908 | int ret; | |
1909 | ||
6e97b0d2 IP |
1910 | /* |
1911 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1912 | * beacon interval, which was not known when the station interface was | |
1913 | * added. | |
1914 | */ | |
1915 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1916 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1917 | ||
03098268 AE |
1918 | if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc && |
1919 | mvmvif->lqm_active) | |
1920 | iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT, | |
1921 | 0, 0); | |
1922 | ||
3dfd3a97 JB |
1923 | /* |
1924 | * If we're not associated yet, take the (new) BSSID before associating | |
1925 | * so the firmware knows. If we're already associated, then use the old | |
1926 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
1927 | * branch for disassociation below. | |
1928 | */ | |
1929 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
1930 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1931 | ||
1932 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
1933 | if (ret) |
1934 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1935 | ||
3dfd3a97 JB |
1936 | /* after sending it once, adopt mac80211 data */ |
1937 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1938 | mvmvif->associated = bss_conf->assoc; | |
1939 | ||
8ca151b5 JB |
1940 | if (changes & BSS_CHANGED_ASSOC) { |
1941 | if (bss_conf->assoc) { | |
33cef925 JB |
1942 | /* clear statistics to get clean beacon counter */ |
1943 | iwl_mvm_request_statistics(mvm, true); | |
1944 | memset(&mvmvif->beacon_stats, 0, | |
1945 | sizeof(mvmvif->beacon_stats)); | |
1946 | ||
8ca151b5 | 1947 | /* add quota for this interface */ |
7754ae79 | 1948 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1949 | if (ret) { |
1950 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1951 | return; | |
1952 | } | |
016d27e1 JB |
1953 | |
1954 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1955 | &mvm->status)) { | |
1956 | /* | |
1957 | * If we're restarting then the firmware will | |
1958 | * obviously have lost synchronisation with | |
1959 | * the AP. It will attempt to synchronise by | |
1960 | * itself, but we can make it more reliable by | |
1961 | * scheduling a session protection time event. | |
1962 | * | |
1963 | * The firmware needs to receive a beacon to | |
1964 | * catch up with synchronisation, use 110% of | |
1965 | * the beacon interval. | |
1966 | * | |
1967 | * Set a large maximum delay to allow for more | |
1968 | * than a single interface. | |
1969 | */ | |
1970 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1971 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 1972 | 5 * dur, false); |
016d27e1 | 1973 | } |
1f3b0ff8 LE |
1974 | |
1975 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1976 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 1977 | if (vif->p2p) { |
29a90a49 | 1978 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
1979 | iwl_mvm_update_smps(mvm, vif, |
1980 | IWL_MVM_SMPS_REQ_PROT, | |
1981 | IEEE80211_SMPS_DYNAMIC); | |
1982 | } | |
0ae98812 | 1983 | } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { |
1f3b0ff8 LE |
1984 | /* |
1985 | * If update fails - SF might be running in associated | |
1986 | * mode while disassociated - which is forbidden. | |
1987 | */ | |
1988 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1989 | "Failed to update SF upon disassociation\n"); | |
1990 | ||
6b28f978 EG |
1991 | /* |
1992 | * If we get an assert during the connection (after the | |
1993 | * station has been added, but before the vif is set | |
1994 | * to associated), mac80211 will re-add the station and | |
1995 | * then configure the vif. Since the vif is not | |
1996 | * associated, we would remove the station here and | |
1997 | * this would fail the recovery. | |
1998 | */ | |
1999 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
2000 | &mvm->status)) { | |
2001 | /* | |
2002 | * Remove AP station now that | |
2003 | * the MAC is unassoc | |
2004 | */ | |
2005 | ret = iwl_mvm_rm_sta_id(mvm, vif, | |
2006 | mvmvif->ap_sta_id); | |
2007 | if (ret) | |
2008 | IWL_ERR(mvm, | |
2009 | "failed to remove AP station\n"); | |
2010 | ||
2011 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
2012 | mvm->d0i3_ap_sta_id = | |
2013 | IWL_MVM_INVALID_STA; | |
2014 | mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; | |
2015 | } | |
37577fe2 | 2016 | |
8ca151b5 | 2017 | /* remove quota for this interface */ |
7754ae79 | 2018 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
2019 | if (ret) |
2020 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
2021 | |
2022 | if (vif->p2p) | |
2023 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
2024 | |
2025 | /* this will take the cleared BSSID from bss_conf */ | |
2026 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2027 | if (ret) | |
2028 | IWL_ERR(mvm, | |
2029 | "failed to update MAC %pM (clear after unassoc)\n", | |
2030 | vif->addr); | |
8ca151b5 | 2031 | } |
a20fd398 | 2032 | |
a07a8f37 SS |
2033 | /* |
2034 | * The firmware tracks the MU-MIMO group on its own. | |
f92659a1 | 2035 | * However, on HW restart we should restore this data. |
a07a8f37 SS |
2036 | */ |
2037 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
f92659a1 | 2038 | (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { |
a07a8f37 SS |
2039 | ret = iwl_mvm_update_mu_groups(mvm, vif); |
2040 | if (ret) | |
2041 | IWL_ERR(mvm, | |
2042 | "failed to update VHT MU_MIMO groups\n"); | |
2043 | } | |
2044 | ||
e59647ea | 2045 | iwl_mvm_recalc_multicast(mvm); |
34672bb3 | 2046 | iwl_mvm_configure_bcast_filter(mvm); |
e59647ea | 2047 | |
a20fd398 AO |
2048 | /* reset rssi values */ |
2049 | mvmvif->bf_data.ave_beacon_signal = 0; | |
2050 | ||
8e484f0b | 2051 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
2052 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
2053 | IEEE80211_SMPS_AUTOMATIC); | |
355346ba AS |
2054 | if (fw_has_capa(&mvm->fw->ucode_capa, |
2055 | IWL_UCODE_TLV_CAPA_UMAC_SCAN)) | |
2056 | iwl_mvm_config_scan(mvm); | |
b45242c9 AS |
2057 | } |
2058 | ||
2059 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
210a544e | 2060 | /* |
b45242c9 | 2061 | * We received a beacon from the associated AP so |
210a544e JB |
2062 | * remove the session protection. |
2063 | */ | |
2064 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2065 | &mvmvif->time_event_data); | |
cc87d322 | 2066 | |
cc87d322 EH |
2067 | iwl_mvm_sf_update(mvm, vif, false); |
2068 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
2069 | } | |
2070 | ||
283115fb AA |
2071 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | |
2072 | /* | |
2073 | * Send power command on every beacon change, | |
2074 | * because we may have not enabled beacon abort yet. | |
2075 | */ | |
2076 | BSS_CHANGED_BEACON_INFO)) { | |
1bc10d3b JB |
2077 | ret = iwl_mvm_power_update_mac(mvm); |
2078 | if (ret) | |
2079 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2080 | } | |
2081 | ||
88f2fd73 MG |
2082 | if (changes & BSS_CHANGED_TXPOWER) { |
2083 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2084 | bss_conf->txpower); | |
2085 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2086 | } | |
a20fd398 AO |
2087 | |
2088 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2089 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2090 | /* reset cqm events tracking */ |
2091 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2092 | if (mvmvif->bf_data.bf_enabled) { |
2093 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2094 | if (ret) | |
2095 | IWL_ERR(mvm, | |
2096 | "failed to update CQM thresholds\n"); | |
2097 | } | |
a20fd398 | 2098 | } |
2ee8f021 EP |
2099 | |
2100 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2101 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
34672bb3 | 2102 | iwl_mvm_configure_bcast_filter(mvm); |
2ee8f021 | 2103 | } |
8ca151b5 JB |
2104 | } |
2105 | ||
5023d966 JB |
2106 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2107 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2108 | { |
2109 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2110 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2111 | int ret; | |
2112 | ||
576eeee9 EP |
2113 | /* |
2114 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2115 | * (the system time), so make sure it is available. | |
2116 | */ | |
2117 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2118 | if (ret) | |
2119 | return ret; | |
2120 | ||
8ca151b5 JB |
2121 | mutex_lock(&mvm->mutex); |
2122 | ||
2123 | /* Send the beacon template */ | |
2124 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2125 | if (ret) | |
2126 | goto out_unlock; | |
2127 | ||
6e97b0d2 IP |
2128 | /* |
2129 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2130 | * beacon interval, which was not known when the AP interface was added. | |
2131 | */ | |
2132 | if (vif->type == NL80211_IFTYPE_AP) | |
2133 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2134 | ||
94939080 GG |
2135 | mvmvif->ap_assoc_sta_count = 0; |
2136 | ||
8ca151b5 JB |
2137 | /* Add the mac context */ |
2138 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2139 | if (ret) | |
2140 | goto out_unlock; | |
2141 | ||
2142 | /* Perform the binding */ | |
2143 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2144 | if (ret) | |
2145 | goto out_remove; | |
2146 | ||
ced19f26 | 2147 | ret = iwl_mvm_add_mcast_sta(mvm, vif); |
8ca151b5 JB |
2148 | if (ret) |
2149 | goto out_unbind; | |
2150 | ||
ced19f26 SS |
2151 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
2152 | * are added and applied to the scheduler */ | |
2153 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); | |
26d6c16b | 2154 | if (ret) |
ced19f26 | 2155 | goto out_rm_mcast; |
26d6c16b | 2156 | |
5691e218 IP |
2157 | /* must be set before quota calculations */ |
2158 | mvmvif->ap_ibss_active = true; | |
2159 | ||
a11e144e | 2160 | /* power updated needs to be done before quotas */ |
999609f1 | 2161 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2162 | |
7754ae79 | 2163 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 | 2164 | if (ret) |
a11e144e | 2165 | goto out_quota_failed; |
8ca151b5 | 2166 | |
5023d966 | 2167 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2168 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2169 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2170 | |
29a90a49 EP |
2171 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2172 | ||
8e484f0b | 2173 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2174 | |
f697267f AN |
2175 | /* we don't support TDLS during DCM */ |
2176 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2177 | iwl_mvm_teardown_tdls_peers(mvm); | |
2178 | ||
939e4904 | 2179 | goto out_unlock; |
8ca151b5 | 2180 | |
a11e144e | 2181 | out_quota_failed: |
999609f1 | 2182 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2183 | mvmvif->ap_ibss_active = false; |
013290aa | 2184 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
ced19f26 SS |
2185 | out_rm_mcast: |
2186 | iwl_mvm_rm_mcast_sta(mvm, vif); | |
8ca151b5 JB |
2187 | out_unbind: |
2188 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2189 | out_remove: | |
2190 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2191 | out_unlock: | |
2192 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2193 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2194 | return ret; |
2195 | } | |
2196 | ||
5023d966 JB |
2197 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2198 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2199 | { |
2200 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2201 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2202 | ||
38a12b5b JB |
2203 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2204 | ||
8ca151b5 JB |
2205 | mutex_lock(&mvm->mutex); |
2206 | ||
664322fa | 2207 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2208 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2209 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2210 | &mvmvif->time_event_data); | |
664322fa | 2211 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
e9cb0327 | 2212 | mvmvif->csa_countdown = false; |
7f0a7c67 | 2213 | } |
664322fa | 2214 | |
003e5236 AO |
2215 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2216 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2217 | mvm->csa_tx_block_bcn_timeout = 0; | |
2218 | } | |
2219 | ||
5023d966 | 2220 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2221 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2222 | |
8e484f0b | 2223 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2224 | |
29a90a49 EP |
2225 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2226 | ||
5023d966 | 2227 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2228 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2229 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2230 | |
7754ae79 | 2231 | iwl_mvm_update_quotas(mvm, false, NULL); |
ced19f26 SS |
2232 | |
2233 | /* | |
2234 | * This is not very nice, but the simplest: | |
2235 | * For older FWs removing the mcast sta before the bcast station may | |
2236 | * cause assert 0x2b00. | |
2237 | * This is fixed in later FW (which will stop beaconing when removing | |
2238 | * bcast station). | |
2239 | * So make the order of removal depend on the TLV | |
2240 | */ | |
2241 | if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) | |
2242 | iwl_mvm_rm_mcast_sta(mvm, vif); | |
013290aa | 2243 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
ced19f26 SS |
2244 | if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) |
2245 | iwl_mvm_rm_mcast_sta(mvm, vif); | |
8ca151b5 | 2246 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2247 | |
999609f1 | 2248 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2249 | |
8ca151b5 JB |
2250 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2251 | ||
2252 | mutex_unlock(&mvm->mutex); | |
2253 | } | |
2254 | ||
5023d966 JB |
2255 | static void |
2256 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2257 | struct ieee80211_vif *vif, | |
2258 | struct ieee80211_bss_conf *bss_conf, | |
2259 | u32 changes) | |
8ca151b5 | 2260 | { |
be2056fc | 2261 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2262 | |
be2056fc IP |
2263 | /* Changes will be applied when the AP/IBSS is started */ |
2264 | if (!mvmvif->ap_ibss_active) | |
2265 | return; | |
2266 | ||
863230da | 2267 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2268 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2269 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2270 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2271 | |
8ca151b5 | 2272 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2273 | if (changes & BSS_CHANGED_BEACON && |
2274 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2275 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2276 | |
2277 | if (changes & BSS_CHANGED_TXPOWER) { | |
2278 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2279 | bss_conf->txpower); | |
2280 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2281 | } | |
8ca151b5 JB |
2282 | } |
2283 | ||
2284 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2285 | struct ieee80211_vif *vif, | |
2286 | struct ieee80211_bss_conf *bss_conf, | |
2287 | u32 changes) | |
2288 | { | |
2289 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2290 | ||
576eeee9 EP |
2291 | /* |
2292 | * iwl_mvm_bss_info_changed_station() might call | |
2293 | * iwl_mvm_protect_session(), which reads directly from | |
2294 | * the device (the system time), so make sure it is available. | |
2295 | */ | |
2296 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2297 | return; | |
2298 | ||
8ca151b5 JB |
2299 | mutex_lock(&mvm->mutex); |
2300 | ||
723f02ed | 2301 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
c7d42480 | 2302 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
723f02ed | 2303 | |
8ca151b5 JB |
2304 | switch (vif->type) { |
2305 | case NL80211_IFTYPE_STATION: | |
2306 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2307 | break; | |
2308 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2309 | case NL80211_IFTYPE_ADHOC: |
2310 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 | 2311 | break; |
91b08c2d AE |
2312 | case NL80211_IFTYPE_MONITOR: |
2313 | if (changes & BSS_CHANGED_MU_GROUPS) | |
2314 | iwl_mvm_update_mu_groups(mvm, vif); | |
2315 | break; | |
8ca151b5 JB |
2316 | default: |
2317 | /* shouldn't happen */ | |
2318 | WARN_ON_ONCE(1); | |
2319 | } | |
2320 | ||
2321 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2322 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2323 | } |
2324 | ||
2325 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
2326 | struct ieee80211_vif *vif, | |
c56ef672 | 2327 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2328 | { |
2329 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2330 | int ret; | |
2331 | ||
6749dd80 LC |
2332 | if (hw_req->req.n_channels == 0 || |
2333 | hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2334 | return -EINVAL; |
2335 | ||
2336 | mutex_lock(&mvm->mutex); | |
6749dd80 | 2337 | ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); |
8ca151b5 | 2338 | mutex_unlock(&mvm->mutex); |
6749dd80 | 2339 | |
8ca151b5 JB |
2340 | return ret; |
2341 | } | |
2342 | ||
2343 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2344 | struct ieee80211_vif *vif) | |
2345 | { | |
2346 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2347 | ||
2348 | mutex_lock(&mvm->mutex); | |
2349 | ||
e7d3abab LC |
2350 | /* Due to a race condition, it's possible that mac80211 asks |
2351 | * us to stop a hw_scan when it's already stopped. This can | |
2352 | * happen, for instance, if we stopped the scan ourselves, | |
2353 | * called ieee80211_scan_completed() and the userspace called | |
2354 | * cancel scan scan before ieee80211_scan_work() could run. | |
2355 | * To handle that, simply return if the scan is not running. | |
2356 | */ | |
262888fc | 2357 | if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) |
c7d42480 | 2358 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
8ca151b5 JB |
2359 | |
2360 | mutex_unlock(&mvm->mutex); | |
2361 | } | |
2362 | ||
2363 | static void | |
2364 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2365 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2366 | int num_frames, |
2367 | enum ieee80211_frame_release_type reason, | |
2368 | bool more_data) | |
2369 | { | |
2370 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2371 | |
3e56eadf | 2372 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2373 | |
3e56eadf JB |
2374 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2375 | tids, more_data, false); | |
2376 | } | |
2377 | ||
2378 | static void | |
2379 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2380 | struct ieee80211_sta *sta, u16 tids, | |
2381 | int num_frames, | |
2382 | enum ieee80211_frame_release_type reason, | |
2383 | bool more_data) | |
2384 | { | |
2385 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2386 | ||
9a3fcf91 | 2387 | /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ |
3e56eadf JB |
2388 | |
2389 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2390 | tids, more_data, true); | |
8ca151b5 JB |
2391 | } |
2392 | ||
65e25482 JB |
2393 | static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, |
2394 | enum sta_notify_cmd cmd, | |
2395 | struct ieee80211_sta *sta) | |
8ca151b5 JB |
2396 | { |
2397 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2398 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
c22b0ff5 | 2399 | unsigned long txqs = 0, tids = 0; |
3e56eadf | 2400 | int tid; |
8ca151b5 | 2401 | |
c22b0ff5 EG |
2402 | spin_lock_bh(&mvmsta->lock); |
2403 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2404 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
2405 | ||
9a3fcf91 SS |
2406 | if (!iwl_mvm_is_dqa_supported(mvm) && |
2407 | tid_data->state != IWL_AGG_ON && | |
c22b0ff5 EG |
2408 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) |
2409 | continue; | |
2410 | ||
6862fcee | 2411 | if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) |
1c17627b SS |
2412 | continue; |
2413 | ||
c22b0ff5 EG |
2414 | __set_bit(tid_data->txq_id, &txqs); |
2415 | ||
dd32162d | 2416 | if (iwl_mvm_tid_queued(mvm, tid_data) == 0) |
c22b0ff5 EG |
2417 | continue; |
2418 | ||
2419 | __set_bit(tid, &tids); | |
2420 | } | |
2421 | ||
8ca151b5 JB |
2422 | switch (cmd) { |
2423 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 2424 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 2425 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf | 2426 | |
c22b0ff5 | 2427 | for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
3e56eadf | 2428 | ieee80211_sta_set_buffered(sta, tid, true); |
c22b0ff5 EG |
2429 | |
2430 | if (txqs) | |
2431 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); | |
8ca151b5 JB |
2432 | /* |
2433 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2434 | * queues to this station will not be transmitted. The fw will | |
2435 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2436 | */ | |
2437 | break; | |
2438 | case STA_NOTIFY_AWAKE: | |
0ae98812 | 2439 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) |
8ca151b5 | 2440 | break; |
c22b0ff5 EG |
2441 | |
2442 | if (txqs) | |
2443 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); | |
9cc40712 | 2444 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2445 | break; |
2446 | default: | |
2447 | break; | |
2448 | } | |
c22b0ff5 | 2449 | spin_unlock_bh(&mvmsta->lock); |
8ca151b5 JB |
2450 | } |
2451 | ||
65e25482 JB |
2452 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, |
2453 | struct ieee80211_vif *vif, | |
2454 | enum sta_notify_cmd cmd, | |
2455 | struct ieee80211_sta *sta) | |
2456 | { | |
2457 | __iwl_mvm_mac_sta_notify(hw, cmd, sta); | |
2458 | } | |
2459 | ||
2460 | void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) | |
2461 | { | |
2462 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
2463 | struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; | |
2464 | struct ieee80211_sta *sta; | |
2465 | struct iwl_mvm_sta *mvmsta; | |
2466 | bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); | |
2467 | ||
2468 | if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) | |
2469 | return; | |
2470 | ||
2471 | rcu_read_lock(); | |
a9560029 | 2472 | sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); |
65e25482 JB |
2473 | if (WARN_ON(IS_ERR_OR_NULL(sta))) { |
2474 | rcu_read_unlock(); | |
2475 | return; | |
2476 | } | |
2477 | ||
2478 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
2479 | ||
2480 | if (!mvmsta->vif || | |
2481 | mvmsta->vif->type != NL80211_IFTYPE_AP) { | |
2482 | rcu_read_unlock(); | |
2483 | return; | |
2484 | } | |
2485 | ||
2486 | if (mvmsta->sleeping != sleeping) { | |
2487 | mvmsta->sleeping = sleeping; | |
2488 | __iwl_mvm_mac_sta_notify(mvm->hw, | |
2489 | sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, | |
2490 | sta); | |
2491 | ieee80211_sta_ps_transition(sta, sleeping); | |
2492 | } | |
2493 | ||
2494 | if (sleeping) { | |
2495 | switch (notif->type) { | |
2496 | case IWL_MVM_PM_EVENT_AWAKE: | |
2497 | case IWL_MVM_PM_EVENT_ASLEEP: | |
2498 | break; | |
2499 | case IWL_MVM_PM_EVENT_UAPSD: | |
2500 | ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); | |
2501 | break; | |
2502 | case IWL_MVM_PM_EVENT_PS_POLL: | |
2503 | ieee80211_sta_pspoll(sta); | |
2504 | break; | |
2505 | default: | |
2506 | break; | |
2507 | } | |
2508 | } | |
2509 | ||
2510 | rcu_read_unlock(); | |
2511 | } | |
2512 | ||
1ddbbb0c JB |
2513 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2514 | struct ieee80211_vif *vif, | |
2515 | struct ieee80211_sta *sta) | |
2516 | { | |
2517 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2518 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2519 | |
2520 | /* | |
2521 | * This is called before mac80211 does RCU synchronisation, | |
2522 | * so here we already invalidate our internal RCU-protected | |
2523 | * station pointer. The rest of the code will thus no longer | |
2524 | * be able to find the station this way, and we don't rely | |
2525 | * on further RCU synchronisation after the sta_state() | |
2526 | * callback deleted the station. | |
2527 | */ | |
2528 | mutex_lock(&mvm->mutex); | |
2529 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2530 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2531 | ERR_PTR(-ENOENT)); | |
94939080 | 2532 | |
1ddbbb0c JB |
2533 | mutex_unlock(&mvm->mutex); |
2534 | } | |
2535 | ||
bd1ba664 JB |
2536 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2537 | const u8 *bssid) | |
2538 | { | |
2539 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2540 | return; | |
2541 | ||
c5241b0c | 2542 | if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { |
cee5a882 AA |
2543 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2544 | return; | |
2545 | } | |
2546 | ||
11dee0b4 EG |
2547 | if (!vif->p2p && |
2548 | (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { | |
bd1ba664 JB |
2549 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2550 | return; | |
2551 | } | |
2552 | ||
2553 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2554 | } | |
2555 | ||
1e8f1329 GBA |
2556 | static void |
2557 | iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, | |
2558 | struct ieee80211_vif *vif, u8 *peer_addr, | |
2559 | enum nl80211_tdls_operation action) | |
2560 | { | |
2561 | struct iwl_fw_dbg_trigger_tlv *trig; | |
2562 | struct iwl_fw_dbg_trigger_tdls *tdls_trig; | |
2563 | ||
2564 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) | |
2565 | return; | |
2566 | ||
2567 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); | |
2568 | tdls_trig = (void *)trig->data; | |
2569 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
2570 | return; | |
2571 | ||
2572 | if (!(tdls_trig->action_bitmap & BIT(action))) | |
2573 | return; | |
2574 | ||
2575 | if (tdls_trig->peer_mode && | |
2576 | memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) | |
2577 | return; | |
2578 | ||
2579 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
2580 | "TDLS event occurred, peer %pM, action %d", | |
2581 | peer_addr, action); | |
2582 | } | |
2583 | ||
24afba76 LK |
2584 | static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm, |
2585 | struct iwl_mvm_sta *mvm_sta) | |
2586 | { | |
2587 | struct iwl_mvm_tid_data *tid_data; | |
2588 | struct sk_buff *skb; | |
2589 | int i; | |
2590 | ||
2591 | spin_lock_bh(&mvm_sta->lock); | |
2592 | for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { | |
2593 | tid_data = &mvm_sta->tid_data[i]; | |
2594 | while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) | |
2595 | ieee80211_free_txskb(mvm->hw, skb); | |
2596 | } | |
2597 | spin_unlock_bh(&mvm_sta->lock); | |
2598 | } | |
2599 | ||
8ca151b5 JB |
2600 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2601 | struct ieee80211_vif *vif, | |
2602 | struct ieee80211_sta *sta, | |
2603 | enum ieee80211_sta_state old_state, | |
2604 | enum ieee80211_sta_state new_state) | |
2605 | { | |
2606 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2607 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
6ea29ce5 | 2608 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
2609 | int ret; |
2610 | ||
2611 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2612 | sta->addr, old_state, new_state); | |
2613 | ||
2614 | /* this would be a mac80211 bug ... but don't crash */ | |
2615 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2616 | return -EINVAL; | |
2617 | ||
2618 | /* if a STA is being removed, reuse its ID */ | |
2619 | flush_work(&mvm->sta_drained_wk); | |
2620 | ||
24afba76 LK |
2621 | /* |
2622 | * If we are in a STA removal flow and in DQA mode: | |
2623 | * | |
2624 | * This is after the sync_rcu part, so the queues have already been | |
2625 | * flushed. No more TXs on their way in mac80211's path, and no more in | |
2626 | * the queues. | |
2627 | * Also, we won't be getting any new TX frames for this station. | |
2628 | * What we might have are deferred TX frames that need to be taken care | |
2629 | * of. | |
2630 | * | |
2631 | * Drop any still-queued deferred-frame before removing the STA, and | |
2632 | * make sure the worker is no longer handling frames for this STA. | |
2633 | */ | |
2634 | if (old_state == IEEE80211_STA_NONE && | |
2635 | new_state == IEEE80211_STA_NOTEXIST && | |
2636 | iwl_mvm_is_dqa_supported(mvm)) { | |
24afba76 LK |
2637 | iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta); |
2638 | flush_work(&mvm->add_stream_wk); | |
2639 | ||
2640 | /* | |
2641 | * No need to make sure deferred TX indication is off since the | |
2642 | * worker will already remove it if it was on | |
2643 | */ | |
2644 | } | |
2645 | ||
8ca151b5 | 2646 | mutex_lock(&mvm->mutex); |
6ea29ce5 JB |
2647 | /* track whether or not the station is associated */ |
2648 | mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC; | |
2649 | ||
8ca151b5 JB |
2650 | if (old_state == IEEE80211_STA_NOTEXIST && |
2651 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2652 | /* |
2653 | * Firmware bug - it'll crash if the beacon interval is less | |
2654 | * than 16. We can't avoid connecting at all, so refuse the | |
2655 | * station state change, this will cause mac80211 to abandon | |
2656 | * attempts to connect to this AP, and eventually wpa_s will | |
2657 | * blacklist the AP... | |
2658 | */ | |
2659 | if (vif->type == NL80211_IFTYPE_STATION && | |
2660 | vif->bss_conf.beacon_int < 16) { | |
2661 | IWL_ERR(mvm, | |
2662 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2663 | sta->addr, vif->bss_conf.beacon_int); | |
2664 | ret = -EINVAL; | |
2665 | goto out_unlock; | |
2666 | } | |
cf7b491d AN |
2667 | |
2668 | if (sta->tdls && | |
2669 | (vif->p2p || | |
fa3d07e4 AN |
2670 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2671 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2672 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2673 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2674 | ret = -EBUSY; | |
2675 | goto out_unlock; | |
2676 | } | |
2677 | ||
8ca151b5 | 2678 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1e8f1329 | 2679 | if (sta->tdls && ret == 0) { |
fa3d07e4 | 2680 | iwl_mvm_recalc_tdls_state(mvm, vif, true); |
1e8f1329 GBA |
2681 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2682 | NL80211_TDLS_SETUP); | |
2683 | } | |
8ca151b5 JB |
2684 | } else if (old_state == IEEE80211_STA_NONE && |
2685 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2686 | /* |
2687 | * EBS may be disabled due to previous failures reported by FW. | |
2688 | * Reset EBS status here assuming environment has been changed. | |
2689 | */ | |
2690 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2691 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2692 | ret = 0; |
2693 | } else if (old_state == IEEE80211_STA_AUTH && | |
2694 | new_state == IEEE80211_STA_ASSOC) { | |
8be30c13 AB |
2695 | if (vif->type == NL80211_IFTYPE_AP) { |
2696 | mvmvif->ap_assoc_sta_count++; | |
2697 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2698 | } | |
735a0045 GM |
2699 | |
2700 | iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, | |
2701 | true); | |
7a453973 | 2702 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
8ca151b5 JB |
2703 | } else if (old_state == IEEE80211_STA_ASSOC && |
2704 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2705 | |
2706 | /* we don't support TDLS during DCM */ | |
2707 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2708 | iwl_mvm_teardown_tdls_peers(mvm); | |
2709 | ||
1e8f1329 GBA |
2710 | if (sta->tdls) |
2711 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, | |
2712 | NL80211_TDLS_ENABLE_LINK); | |
2713 | ||
7df15b1e | 2714 | /* enable beacon filtering */ |
fa7b2e7f | 2715 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2716 | ret = 0; |
2717 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2718 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2719 | /* disable beacon filtering */ |
a1022927 | 2720 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2721 | ret = 0; |
2722 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2723 | new_state == IEEE80211_STA_AUTH) { | |
8be30c13 AB |
2724 | if (vif->type == NL80211_IFTYPE_AP) { |
2725 | mvmvif->ap_assoc_sta_count--; | |
2726 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2727 | } | |
8ca151b5 JB |
2728 | ret = 0; |
2729 | } else if (old_state == IEEE80211_STA_AUTH && | |
2730 | new_state == IEEE80211_STA_NONE) { | |
2731 | ret = 0; | |
2732 | } else if (old_state == IEEE80211_STA_NONE && | |
2733 | new_state == IEEE80211_STA_NOTEXIST) { | |
2734 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1e8f1329 | 2735 | if (sta->tdls) { |
fa3d07e4 | 2736 | iwl_mvm_recalc_tdls_state(mvm, vif, false); |
1e8f1329 GBA |
2737 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2738 | NL80211_TDLS_DISABLE_LINK); | |
2739 | } | |
8ca151b5 JB |
2740 | } else { |
2741 | ret = -EIO; | |
2742 | } | |
48bc1307 | 2743 | out_unlock: |
8ca151b5 JB |
2744 | mutex_unlock(&mvm->mutex); |
2745 | ||
9c126cd6 LK |
2746 | if (sta->tdls && ret == 0) { |
2747 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2748 | new_state == IEEE80211_STA_NONE) | |
2749 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2750 | else if (old_state == IEEE80211_STA_NONE && | |
2751 | new_state == IEEE80211_STA_NOTEXIST) | |
2752 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2753 | } | |
2754 | ||
8ca151b5 JB |
2755 | return ret; |
2756 | } | |
2757 | ||
2758 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2759 | { | |
2760 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2761 | ||
2762 | mvm->rts_threshold = value; | |
2763 | ||
2764 | return 0; | |
2765 | } | |
2766 | ||
1f3b0ff8 LE |
2767 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2768 | struct ieee80211_vif *vif, | |
2769 | struct ieee80211_sta *sta, u32 changed) | |
2770 | { | |
2771 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2772 | ||
2773 | if (vif->type == NL80211_IFTYPE_STATION && | |
2774 | changed & IEEE80211_RC_NSS_CHANGED) | |
2775 | iwl_mvm_sf_update(mvm, vif, false); | |
2776 | } | |
2777 | ||
8ca151b5 JB |
2778 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2779 | struct ieee80211_vif *vif, u16 ac, | |
2780 | const struct ieee80211_tx_queue_params *params) | |
2781 | { | |
2782 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2783 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2784 | ||
2785 | mvmvif->queue_params[ac] = *params; | |
2786 | ||
2787 | /* | |
2788 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2789 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2790 | */ | |
2791 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2792 | int ret; | |
2793 | ||
2794 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2795 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2796 | mutex_unlock(&mvm->mutex); |
2797 | return ret; | |
2798 | } | |
2799 | return 0; | |
2800 | } | |
2801 | ||
2802 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2803 | struct ieee80211_vif *vif) | |
2804 | { | |
2805 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
7c70fee5 SS |
2806 | u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; |
2807 | u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; | |
8ca151b5 JB |
2808 | |
2809 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2810 | return; | |
2811 | ||
576eeee9 EP |
2812 | /* |
2813 | * iwl_mvm_protect_session() reads directly from the device | |
2814 | * (the system time), so make sure it is available. | |
2815 | */ | |
2816 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2817 | return; | |
2818 | ||
8ca151b5 JB |
2819 | mutex_lock(&mvm->mutex); |
2820 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2821 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2822 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2823 | |
2824 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2825 | } |
2826 | ||
35a000b7 DS |
2827 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2828 | struct ieee80211_vif *vif, | |
2829 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2830 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2831 | { |
2832 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
35a000b7 | 2833 | |
35a000b7 | 2834 | int ret; |
4660dfbb | 2835 | |
35a000b7 DS |
2836 | mutex_lock(&mvm->mutex); |
2837 | ||
1f940386 | 2838 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2839 | ret = -EBUSY; |
2840 | goto out; | |
2841 | } | |
2842 | ||
19945dfb | 2843 | ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); |
d2496221 | 2844 | |
35a000b7 DS |
2845 | out: |
2846 | mutex_unlock(&mvm->mutex); | |
2847 | return ret; | |
2848 | } | |
2849 | ||
37e3308c JB |
2850 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2851 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2852 | { |
2853 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2854 | int ret; |
35a000b7 DS |
2855 | |
2856 | mutex_lock(&mvm->mutex); | |
e7d3abab LC |
2857 | |
2858 | /* Due to a race condition, it's possible that mac80211 asks | |
2859 | * us to stop a sched_scan when it's already stopped. This | |
2860 | * can happen, for instance, if we stopped the scan ourselves, | |
2861 | * called ieee80211_sched_scan_stopped() and the userspace called | |
2862 | * stop sched scan scan before ieee80211_sched_scan_stopped_work() | |
2863 | * could run. To handle this, simply return if the scan is | |
2864 | * not running. | |
2865 | */ | |
262888fc | 2866 | if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { |
e7d3abab LC |
2867 | mutex_unlock(&mvm->mutex); |
2868 | return 0; | |
2869 | } | |
2870 | ||
c7d42480 | 2871 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); |
35a000b7 | 2872 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2873 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2874 | |
33ea27f6 | 2875 | return ret; |
35a000b7 DS |
2876 | } |
2877 | ||
8ca151b5 JB |
2878 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2879 | enum set_key_cmd cmd, | |
2880 | struct ieee80211_vif *vif, | |
2881 | struct ieee80211_sta *sta, | |
2882 | struct ieee80211_key_conf *key) | |
2883 | { | |
2884 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
f5e28eac JB |
2885 | struct iwl_mvm_sta *mvmsta; |
2886 | struct iwl_mvm_key_pn *ptk_pn; | |
2887 | int keyidx = key->keyidx; | |
8ca151b5 | 2888 | int ret; |
d6ee54a9 | 2889 | u8 key_offset; |
8ca151b5 | 2890 | |
3b37f4c9 | 2891 | if (iwlwifi_mod_params.swcrypto) { |
8ca151b5 JB |
2892 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); |
2893 | return -EOPNOTSUPP; | |
2894 | } | |
2895 | ||
2896 | switch (key->cipher) { | |
2897 | case WLAN_CIPHER_SUITE_TKIP: | |
2898 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1ad4f639 | 2899 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
8ca151b5 | 2900 | break; |
ca8c0f4b | 2901 | case WLAN_CIPHER_SUITE_CCMP: |
2a53d166 AB |
2902 | case WLAN_CIPHER_SUITE_GCMP: |
2903 | case WLAN_CIPHER_SUITE_GCMP_256: | |
85aeb58c DS |
2904 | if (!iwl_mvm_has_new_tx_api(mvm)) |
2905 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
ca8c0f4b | 2906 | break; |
8ca151b5 | 2907 | case WLAN_CIPHER_SUITE_AES_CMAC: |
8e160ab8 AB |
2908 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
2909 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
30686bf7 | 2910 | WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); |
8ca151b5 JB |
2911 | break; |
2912 | case WLAN_CIPHER_SUITE_WEP40: | |
2913 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2914 | /* For non-client mode, only use WEP keys for TX as we probably |
2915 | * don't have a station yet anyway and would then have to keep | |
2916 | * track of the keys, linking them to each of the clients/peers | |
2917 | * as they appear. For now, don't do that, for performance WEP | |
2918 | * offload doesn't really matter much, but we need it for some | |
2919 | * other offload features in client mode. | |
8ca151b5 | 2920 | */ |
ba3943b0 JB |
2921 | if (vif->type != NL80211_IFTYPE_STATION) |
2922 | return 0; | |
2923 | break; | |
8ca151b5 | 2924 | default: |
e36e5433 MS |
2925 | /* currently FW supports only one optional cipher scheme */ |
2926 | if (hw->n_cipher_schemes && | |
2927 | hw->cipher_schemes->cipher == key->cipher) | |
2928 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2929 | else | |
2930 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2931 | } |
2932 | ||
2933 | mutex_lock(&mvm->mutex); | |
2934 | ||
2935 | switch (cmd) { | |
2936 | case SET_KEY: | |
5023d966 JB |
2937 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2938 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2939 | /* | |
2940 | * GTK on AP interface is a TX-only key, return 0; | |
2941 | * on IBSS they're per-station and because we're lazy | |
2942 | * we don't support them for RX, so do the same. | |
8e160ab8 | 2943 | * CMAC/GMAC in AP/IBSS modes must be done in software. |
5023d966 | 2944 | */ |
8e160ab8 AB |
2945 | if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || |
2946 | key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || | |
2947 | key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) | |
81279c49 JB |
2948 | ret = -EOPNOTSUPP; |
2949 | else | |
2950 | ret = 0; | |
85aeb58c DS |
2951 | |
2952 | if (key->cipher != WLAN_CIPHER_SUITE_GCMP && | |
2953 | key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && | |
2954 | !iwl_mvm_has_new_tx_api(mvm)) { | |
2955 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
2956 | break; | |
2957 | } | |
6caffd4f JB |
2958 | } |
2959 | ||
b546dcd6 JB |
2960 | /* During FW restart, in order to restore the state as it was, |
2961 | * don't try to reprogram keys we previously failed for. | |
2962 | */ | |
2963 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2964 | key->hw_key_idx == STA_KEY_IDX_INVALID) { | |
2965 | IWL_DEBUG_MAC80211(mvm, | |
2966 | "skip invalid idx key programming during restart\n"); | |
2967 | ret = 0; | |
2968 | break; | |
2969 | } | |
2970 | ||
f5e28eac JB |
2971 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
2972 | sta && iwl_mvm_has_new_rx_api(mvm) && | |
2973 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
2974 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
2975 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
2976 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
2977 | struct ieee80211_key_seq seq; |
2978 | int tid, q; | |
2979 | ||
2980 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
2981 | WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); | |
2982 | ptk_pn = kzalloc(sizeof(*ptk_pn) + | |
2983 | mvm->trans->num_rx_queues * | |
2984 | sizeof(ptk_pn->q[0]), | |
2985 | GFP_KERNEL); | |
2986 | if (!ptk_pn) { | |
2987 | ret = -ENOMEM; | |
2988 | break; | |
2989 | } | |
2990 | ||
2991 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2992 | ieee80211_get_key_rx_seq(key, tid, &seq); | |
2993 | for (q = 0; q < mvm->trans->num_rx_queues; q++) | |
2994 | memcpy(ptk_pn->q[q].pn[tid], | |
2995 | seq.ccmp.pn, | |
2996 | IEEE80211_CCMP_PN_LEN); | |
2997 | } | |
2998 | ||
2999 | rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); | |
3000 | } | |
3001 | ||
d6ee54a9 LC |
3002 | /* in HW restart reuse the index, otherwise request a new one */ |
3003 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
3004 | key_offset = key->hw_key_idx; | |
3005 | else | |
3006 | key_offset = STA_KEY_IDX_INVALID; | |
3007 | ||
8ca151b5 | 3008 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
d6ee54a9 | 3009 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); |
8ca151b5 JB |
3010 | if (ret) { |
3011 | IWL_WARN(mvm, "set key failed\n"); | |
3012 | /* | |
3013 | * can't add key for RX, but we don't need it | |
3014 | * in the device for TX so still return 0 | |
3015 | */ | |
6caffd4f | 3016 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
3017 | ret = 0; |
3018 | } | |
3019 | ||
3020 | break; | |
3021 | case DISABLE_KEY: | |
6caffd4f JB |
3022 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
3023 | ret = 0; | |
3024 | break; | |
3025 | } | |
3026 | ||
f5e28eac JB |
3027 | if (sta && iwl_mvm_has_new_rx_api(mvm) && |
3028 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
3029 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
3030 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
3031 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
3032 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3033 | ptk_pn = rcu_dereference_protected( | |
3034 | mvmsta->ptk_pn[keyidx], | |
3035 | lockdep_is_held(&mvm->mutex)); | |
3036 | RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); | |
3037 | if (ptk_pn) | |
3038 | kfree_rcu(ptk_pn, rcu_head); | |
3039 | } | |
3040 | ||
8ca151b5 JB |
3041 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
3042 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
3043 | break; | |
3044 | default: | |
3045 | ret = -EINVAL; | |
3046 | } | |
3047 | ||
3048 | mutex_unlock(&mvm->mutex); | |
3049 | return ret; | |
3050 | } | |
3051 | ||
3052 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
3053 | struct ieee80211_vif *vif, | |
3054 | struct ieee80211_key_conf *keyconf, | |
3055 | struct ieee80211_sta *sta, | |
3056 | u32 iv32, u16 *phase1key) | |
3057 | { | |
3058 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3059 | ||
5023d966 JB |
3060 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
3061 | return; | |
3062 | ||
8ca151b5 JB |
3063 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
3064 | } | |
3065 | ||
3066 | ||
b112889c AM |
3067 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
3068 | struct iwl_rx_packet *pkt, void *data) | |
3069 | { | |
3070 | struct iwl_mvm *mvm = | |
3071 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
3072 | struct iwl_hs20_roc_res *resp; | |
3073 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
3074 | struct iwl_mvm_time_event_data *te_data = data; | |
3075 | ||
3076 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
3077 | return true; | |
3078 | ||
3079 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
3080 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
3081 | return true; | |
3082 | } | |
3083 | ||
3084 | resp = (void *)pkt->data; | |
3085 | ||
3086 | IWL_DEBUG_TE(mvm, | |
3087 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
3088 | resp->status, resp->event_unique_id); | |
3089 | ||
3090 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
3091 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
3092 | te_data->uid); | |
3093 | ||
3094 | spin_lock_bh(&mvm->time_event_lock); | |
3095 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
3096 | spin_unlock_bh(&mvm->time_event_lock); | |
3097 | ||
3098 | return true; | |
3099 | } | |
3100 | ||
dc28e12f MG |
3101 | #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) |
3102 | #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) | |
3103 | #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) | |
3104 | #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) | |
3105 | #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) | |
b112889c AM |
3106 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
3107 | struct ieee80211_channel *channel, | |
3108 | struct ieee80211_vif *vif, | |
3109 | int duration) | |
3110 | { | |
3111 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
3112 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3113 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
6eb031d2 | 3114 | static const u16 time_event_response[] = { HOT_SPOT_CMD }; |
b112889c | 3115 | struct iwl_notification_wait wait_time_event; |
dc28e12f MG |
3116 | u32 dtim_interval = vif->bss_conf.dtim_period * |
3117 | vif->bss_conf.beacon_int; | |
3118 | u32 req_dur, delay; | |
b112889c AM |
3119 | struct iwl_hs20_roc_req aux_roc_req = { |
3120 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
3121 | .id_and_color = | |
3122 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
3123 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
3124 | /* Set the channel info data */ | |
57fbcce3 | 3125 | .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ? |
b112889c AM |
3126 | PHY_BAND_24 : PHY_BAND_5, |
3127 | .channel_info.channel = channel->hw_value, | |
3128 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
3129 | /* Set the time and duration */ | |
3130 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
b112889c AM |
3131 | }; |
3132 | ||
dc28e12f MG |
3133 | delay = AUX_ROC_MIN_DELAY; |
3134 | req_dur = MSEC_TO_TU(duration); | |
3135 | ||
3136 | /* | |
3137 | * If we are associated we want the delay time to be at least one | |
3138 | * dtim interval so that the FW can wait until after the DTIM and | |
3139 | * then start the time event, this will potentially allow us to | |
3140 | * remain off-channel for the max duration. | |
3141 | * Since we want to use almost a whole dtim interval we would also | |
3142 | * like the delay to be for 2-3 dtim intervals, in case there are | |
3143 | * other time events with higher priority. | |
3144 | */ | |
3145 | if (vif->bss_conf.assoc) { | |
3146 | delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); | |
3147 | /* We cannot remain off-channel longer than the DTIM interval */ | |
3148 | if (dtim_interval <= req_dur) { | |
3149 | req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; | |
3150 | if (req_dur <= AUX_ROC_MIN_DURATION) | |
3151 | req_dur = dtim_interval - | |
3152 | AUX_ROC_MIN_SAFETY_BUFFER; | |
3153 | } | |
3154 | } | |
3155 | ||
3156 | aux_roc_req.duration = cpu_to_le32(req_dur); | |
3157 | aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); | |
3158 | ||
3159 | IWL_DEBUG_TE(mvm, | |
3160 | "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", | |
3161 | channel->hw_value, req_dur, duration, delay, | |
3162 | dtim_interval); | |
b112889c AM |
3163 | /* Set the node address */ |
3164 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
3165 | ||
a6cc5163 MG |
3166 | lockdep_assert_held(&mvm->mutex); |
3167 | ||
3168 | spin_lock_bh(&mvm->time_event_lock); | |
3169 | ||
3170 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
3171 | spin_unlock_bh(&mvm->time_event_lock); | |
3172 | return -EIO; | |
3173 | } | |
3174 | ||
b112889c AM |
3175 | te_data->vif = vif; |
3176 | te_data->duration = duration; | |
3177 | te_data->id = HOT_SPOT_CMD; | |
3178 | ||
b112889c AM |
3179 | spin_unlock_bh(&mvm->time_event_lock); |
3180 | ||
3181 | /* | |
3182 | * Use a notification wait, which really just processes the | |
3183 | * command response and doesn't wait for anything, in order | |
3184 | * to be able to process the response and get the UID inside | |
3185 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
3186 | * stores the buffer and then wakes up this thread, by which | |
3187 | * time another notification (that the time event started) | |
3188 | * might already be processed unsuccessfully. | |
3189 | */ | |
3190 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
3191 | time_event_response, | |
3192 | ARRAY_SIZE(time_event_response), | |
3193 | iwl_mvm_rx_aux_roc, te_data); | |
3194 | ||
3195 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
3196 | &aux_roc_req); | |
3197 | ||
3198 | if (res) { | |
3199 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
3200 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
3201 | goto out_clear_te; | |
3202 | } | |
3203 | ||
3204 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
3205 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
3206 | /* should never fail */ | |
3207 | WARN_ON_ONCE(res); | |
3208 | ||
3209 | if (res) { | |
3210 | out_clear_te: | |
3211 | spin_lock_bh(&mvm->time_event_lock); | |
3212 | iwl_mvm_te_clear_data(mvm, te_data); | |
3213 | spin_unlock_bh(&mvm->time_event_lock); | |
3214 | } | |
3215 | ||
3216 | return res; | |
3217 | } | |
3218 | ||
8ca151b5 JB |
3219 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
3220 | struct ieee80211_vif *vif, | |
3221 | struct ieee80211_channel *channel, | |
d339d5ca IP |
3222 | int duration, |
3223 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
3224 | { |
3225 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 3226 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 3227 | struct cfg80211_chan_def chandef; |
31d385ae IP |
3228 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
3229 | int ret, i; | |
3230 | ||
3231 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
3232 | duration, type); | |
8ca151b5 | 3233 | |
6ed13164 MG |
3234 | flush_work(&mvm->roc_done_wk); |
3235 | ||
a6cc5163 MG |
3236 | mutex_lock(&mvm->mutex); |
3237 | ||
b112889c AM |
3238 | switch (vif->type) { |
3239 | case NL80211_IFTYPE_STATION: | |
859d914c JB |
3240 | if (fw_has_capa(&mvm->fw->ucode_capa, |
3241 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { | |
5ac6c72e LC |
3242 | /* Use aux roc framework (HS20) */ |
3243 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
3244 | vif, duration); | |
3245 | goto out_unlock; | |
3246 | } | |
3247 | IWL_ERR(mvm, "hotspot not supported\n"); | |
3248 | ret = -EINVAL; | |
a6cc5163 | 3249 | goto out_unlock; |
b112889c AM |
3250 | case NL80211_IFTYPE_P2P_DEVICE: |
3251 | /* handle below */ | |
3252 | break; | |
3253 | default: | |
3254 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
3255 | ret = -EINVAL; |
3256 | goto out_unlock; | |
8ca151b5 JB |
3257 | } |
3258 | ||
31d385ae IP |
3259 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3260 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3261 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3262 | continue; | |
3263 | ||
3264 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3265 | /* | |
3266 | * Unbind the P2P_DEVICE from the current PHY context, | |
3267 | * and if the PHY context is not used remove it. | |
3268 | */ | |
3269 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3270 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3271 | goto out_unlock; | |
3272 | ||
3273 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3274 | ||
3275 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3276 | mvmvif->phy_ctxt = phy_ctxt; | |
3277 | ||
3278 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3279 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3280 | goto out_unlock; | |
3281 | ||
3282 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3283 | goto schedule_time_event; | |
3284 | } | |
3285 | } | |
3286 | ||
3287 | /* Need to update the PHY context only if the ROC channel changed */ | |
3288 | if (channel == mvmvif->phy_ctxt->channel) | |
3289 | goto schedule_time_event; | |
3290 | ||
8ca151b5 | 3291 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3292 | |
31d385ae IP |
3293 | /* |
3294 | * Change the PHY context configuration as it is currently referenced | |
3295 | * only by the P2P Device MAC | |
3296 | */ | |
3297 | if (mvmvif->phy_ctxt->ref == 1) { | |
3298 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3299 | &chandef, 1, 1); | |
3300 | if (ret) | |
3301 | goto out_unlock; | |
3302 | } else { | |
3303 | /* | |
3304 | * The PHY context is shared with other MACs. Need to remove the | |
3305 | * P2P Device from the binding, allocate an new PHY context and | |
3306 | * create a new binding | |
3307 | */ | |
3308 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3309 | if (!phy_ctxt) { | |
3310 | ret = -ENOSPC; | |
3311 | goto out_unlock; | |
3312 | } | |
3313 | ||
3314 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3315 | 1, 1); | |
3316 | if (ret) { | |
3317 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3318 | goto out_unlock; | |
3319 | } | |
3320 | ||
3321 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3322 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3323 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3324 | goto out_unlock; | |
3325 | ||
3326 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3327 | ||
3328 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3329 | mvmvif->phy_ctxt = phy_ctxt; | |
3330 | ||
3331 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3332 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3333 | goto out_unlock; | |
3334 | ||
3335 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3336 | } | |
3337 | ||
3338 | schedule_time_event: | |
8ca151b5 | 3339 | /* Schedule the time events */ |
e635c797 | 3340 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3341 | |
31d385ae | 3342 | out_unlock: |
8ca151b5 JB |
3343 | mutex_unlock(&mvm->mutex); |
3344 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3345 | return ret; |
3346 | } | |
3347 | ||
3348 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3349 | { | |
3350 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3351 | ||
3352 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3353 | ||
3354 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3355 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3356 | mutex_unlock(&mvm->mutex); |
3357 | ||
3358 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3359 | return 0; | |
3360 | } | |
3361 | ||
b08c1d97 LC |
3362 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3363 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3364 | { |
fe0f2de3 IP |
3365 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3366 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3367 | int ret; |
3368 | ||
b08c1d97 LC |
3369 | lockdep_assert_held(&mvm->mutex); |
3370 | ||
53a9d61e | 3371 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3372 | |
fe0f2de3 IP |
3373 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3374 | if (!phy_ctxt) { | |
3375 | ret = -ENOSPC; | |
3376 | goto out; | |
3377 | } | |
8ca151b5 | 3378 | |
dcbc3e1a | 3379 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3380 | ctx->rx_chains_static, |
3381 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3382 | if (ret) { |
3383 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3384 | goto out; | |
3385 | } | |
3386 | ||
53a9d61e | 3387 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3388 | *phy_ctxt_id = phy_ctxt->id; |
3389 | out: | |
b08c1d97 LC |
3390 | return ret; |
3391 | } | |
3392 | ||
3393 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3394 | struct ieee80211_chanctx_conf *ctx) | |
3395 | { | |
3396 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3397 | int ret; | |
3398 | ||
3399 | mutex_lock(&mvm->mutex); | |
3400 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3401 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3402 | |
8ca151b5 JB |
3403 | return ret; |
3404 | } | |
3405 | ||
b08c1d97 LC |
3406 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3407 | struct ieee80211_chanctx_conf *ctx) | |
3408 | { | |
3409 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3410 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3411 | ||
3412 | lockdep_assert_held(&mvm->mutex); | |
3413 | ||
3414 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3415 | } | |
3416 | ||
8ca151b5 JB |
3417 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3418 | struct ieee80211_chanctx_conf *ctx) | |
3419 | { | |
3420 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3421 | |
3422 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3423 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3424 | mutex_unlock(&mvm->mutex); |
3425 | } | |
3426 | ||
3427 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3428 | struct ieee80211_chanctx_conf *ctx, | |
3429 | u32 changed) | |
3430 | { | |
3431 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3432 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3433 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3434 | |
31d385ae IP |
3435 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3436 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3437 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3438 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3439 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3440 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3441 | phy_ctxt->ref, changed)) | |
3442 | return; | |
3443 | ||
8ca151b5 | 3444 | mutex_lock(&mvm->mutex); |
4d66449a | 3445 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3446 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3447 | ctx->rx_chains_static, |
3448 | ctx->rx_chains_dynamic); | |
3449 | mutex_unlock(&mvm->mutex); | |
3450 | } | |
3451 | ||
b08c1d97 LC |
3452 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3453 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3454 | struct ieee80211_chanctx_conf *ctx, |
3455 | bool switching_chanctx) | |
8ca151b5 | 3456 | { |
fe0f2de3 IP |
3457 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3458 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3459 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3460 | int ret; | |
3461 | ||
b08c1d97 | 3462 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3463 | |
fe0f2de3 | 3464 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3465 | |
3466 | switch (vif->type) { | |
3467 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3468 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3469 | if (switching_chanctx) { | |
bd3398e2 AO |
3470 | mvmvif->ap_ibss_active = true; |
3471 | break; | |
3472 | } | |
5023d966 | 3473 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3474 | /* |
3475 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3476 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3477 | */ |
3478 | ret = 0; | |
b08c1d97 | 3479 | goto out; |
8ca151b5 | 3480 | case NL80211_IFTYPE_STATION: |
2533edce | 3481 | break; |
8ca151b5 | 3482 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3483 | /* always disable PS when a monitor interface is active */ |
3484 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3485 | break; |
3486 | default: | |
3487 | ret = -EINVAL; | |
b08c1d97 | 3488 | goto out; |
8ca151b5 JB |
3489 | } |
3490 | ||
3491 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3492 | if (ret) | |
b08c1d97 | 3493 | goto out; |
8ca151b5 JB |
3494 | |
3495 | /* | |
92d85562 AB |
3496 | * Power state must be updated before quotas, |
3497 | * otherwise fw will complain. | |
3498 | */ | |
999609f1 | 3499 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3500 | |
3501 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3502 | * interfaces. For the other types, the bss_info changed flow |
3503 | * will handle quota settings. | |
3504 | */ | |
3505 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3506 | mvmvif->monitor_active = true; |
7754ae79 | 3507 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
3508 | if (ret) |
3509 | goto out_remove_binding; | |
0e39eb03 CRI |
3510 | |
3511 | ret = iwl_mvm_add_snif_sta(mvm, vif); | |
3512 | if (ret) | |
3513 | goto out_remove_binding; | |
3514 | ||
8ca151b5 JB |
3515 | } |
3516 | ||
bd3398e2 | 3517 | /* Handle binding during CSA */ |
a57c688d | 3518 | if (vif->type == NL80211_IFTYPE_AP) { |
7754ae79 | 3519 | iwl_mvm_update_quotas(mvm, false, NULL); |
3dfd3a97 | 3520 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3521 | } |
3522 | ||
4741dd04 | 3523 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3524 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3525 | ||
3526 | /* iwl_mvm_protect_session() reads directly from the | |
3527 | * device (the system time), so make sure it is | |
3528 | * available. | |
3529 | */ | |
3530 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3531 | if (ret) | |
3532 | goto out_remove_binding; | |
3533 | ||
3534 | /* Protect the session to make sure we hear the first | |
3535 | * beacon on the new channel. | |
3536 | */ | |
3537 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3538 | vif->bss_conf.beacon_int / 2, | |
3539 | true); | |
3540 | ||
3541 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3542 | ||
7754ae79 | 3543 | iwl_mvm_update_quotas(mvm, false, NULL); |
0ce04ce7 LC |
3544 | } |
3545 | ||
b08c1d97 | 3546 | goto out; |
8ca151b5 | 3547 | |
b08c1d97 | 3548 | out_remove_binding: |
8ca151b5 | 3549 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3550 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3551 | out: |
8ca151b5 JB |
3552 | if (ret) |
3553 | mvmvif->phy_ctxt = NULL; | |
3554 | return ret; | |
3555 | } | |
b08c1d97 LC |
3556 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3557 | struct ieee80211_vif *vif, | |
3558 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3559 | { |
3560 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3561 | int ret; |
8ca151b5 JB |
3562 | |
3563 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3564 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3565 | mutex_unlock(&mvm->mutex); |
3566 | ||
3567 | return ret; | |
3568 | } | |
3569 | ||
3570 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3571 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3572 | struct ieee80211_chanctx_conf *ctx, |
3573 | bool switching_chanctx) | |
b08c1d97 LC |
3574 | { |
3575 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3576 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3577 | |
3578 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3579 | |
3580 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3581 | ||
8ca151b5 | 3582 | switch (vif->type) { |
5023d966 | 3583 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3584 | goto out; |
8ca151b5 | 3585 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3586 | mvmvif->monitor_active = false; |
2533edce | 3587 | mvmvif->ps_disabled = false; |
0e39eb03 | 3588 | iwl_mvm_rm_snif_sta(mvm, vif); |
8ca151b5 | 3589 | break; |
bd3398e2 AO |
3590 | case NL80211_IFTYPE_AP: |
3591 | /* This part is triggered only during CSA */ | |
4741dd04 | 3592 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3593 | goto out; |
bd3398e2 | 3594 | |
7ef0aab6 AO |
3595 | mvmvif->csa_countdown = false; |
3596 | ||
003e5236 AO |
3597 | /* Set CS bit on all the stations */ |
3598 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3599 | ||
3600 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3601 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3602 | ||
bd3398e2 | 3603 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3604 | break; |
3605 | case NL80211_IFTYPE_STATION: | |
3606 | if (!switching_chanctx) | |
3607 | break; | |
3608 | ||
3609 | disabled_vif = vif; | |
3610 | ||
3dfd3a97 | 3611 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3612 | break; |
8ca151b5 JB |
3613 | default: |
3614 | break; | |
3615 | } | |
3616 | ||
7754ae79 | 3617 | iwl_mvm_update_quotas(mvm, false, disabled_vif); |
1e1391ca | 3618 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3619 | |
b08c1d97 | 3620 | out: |
a11e144e | 3621 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3622 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3623 | } |
3624 | ||
3625 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3626 | struct ieee80211_vif *vif, | |
3627 | struct ieee80211_chanctx_conf *ctx) | |
3628 | { | |
3629 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3630 | ||
3631 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3632 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3633 | mutex_unlock(&mvm->mutex); |
3634 | } | |
3635 | ||
50cc9574 LC |
3636 | static int |
3637 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3638 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3639 | { |
b08c1d97 LC |
3640 | int ret; |
3641 | ||
b08c1d97 | 3642 | mutex_lock(&mvm->mutex); |
f0c97783 | 3643 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3644 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3645 | ||
3646 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3647 | if (ret) { | |
3648 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3649 | goto out_reassign; | |
3650 | } | |
3651 | ||
f0c97783 LC |
3652 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3653 | true); | |
b08c1d97 LC |
3654 | if (ret) { |
3655 | IWL_ERR(mvm, | |
3656 | "failed to assign new_ctx during channel switch\n"); | |
3657 | goto out_remove; | |
3658 | } | |
3659 | ||
f697267f AN |
3660 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3661 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3662 | iwl_mvm_teardown_tdls_peers(mvm); | |
3663 | ||
b08c1d97 LC |
3664 | goto out; |
3665 | ||
3666 | out_remove: | |
3667 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3668 | ||
3669 | out_reassign: | |
6fd1fb63 | 3670 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3671 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3672 | goto out_restart; | |
3673 | } | |
3674 | ||
6fd1fb63 LC |
3675 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3676 | true)) { | |
b08c1d97 LC |
3677 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3678 | goto out_restart; | |
3679 | } | |
3680 | ||
3681 | goto out; | |
3682 | ||
3683 | out_restart: | |
3684 | /* things keep failing, better restart the hw */ | |
3685 | iwl_mvm_nic_restart(mvm, false); | |
3686 | ||
3687 | out: | |
3688 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3689 | |
3690 | return ret; | |
3691 | } | |
3692 | ||
48a256e8 LC |
3693 | static int |
3694 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3695 | struct ieee80211_vif_chanctx_switch *vifs) | |
3696 | { | |
3697 | int ret; | |
3698 | ||
3699 | mutex_lock(&mvm->mutex); | |
3700 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3701 | ||
3702 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3703 | true); | |
3704 | if (ret) { | |
3705 | IWL_ERR(mvm, | |
3706 | "failed to assign new_ctx during channel switch\n"); | |
3707 | goto out_reassign; | |
3708 | } | |
3709 | ||
3710 | goto out; | |
3711 | ||
3712 | out_reassign: | |
3713 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3714 | true)) { | |
3715 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3716 | goto out_restart; | |
3717 | } | |
3718 | ||
3719 | goto out; | |
3720 | ||
3721 | out_restart: | |
3722 | /* things keep failing, better restart the hw */ | |
3723 | iwl_mvm_nic_restart(mvm, false); | |
3724 | ||
3725 | out: | |
3726 | mutex_unlock(&mvm->mutex); | |
3727 | ||
3728 | return ret; | |
3729 | } | |
3730 | ||
50cc9574 LC |
3731 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3732 | struct ieee80211_vif_chanctx_switch *vifs, | |
3733 | int n_vifs, | |
3734 | enum ieee80211_chanctx_switch_mode mode) | |
3735 | { | |
3736 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3737 | int ret; | |
3738 | ||
3739 | /* we only support a single-vif right now */ | |
3740 | if (n_vifs > 1) | |
3741 | return -EOPNOTSUPP; | |
3742 | ||
3743 | switch (mode) { | |
3744 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3745 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3746 | break; | |
3747 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3748 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3749 | break; |
3750 | default: | |
3751 | ret = -EOPNOTSUPP; | |
3752 | break; | |
3753 | } | |
3754 | ||
b08c1d97 LC |
3755 | return ret; |
3756 | } | |
3757 | ||
2f0282db JB |
3758 | static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) |
3759 | { | |
3760 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3761 | ||
3762 | return mvm->ibss_manager; | |
3763 | } | |
3764 | ||
8ca151b5 JB |
3765 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3766 | struct ieee80211_sta *sta, | |
3767 | bool set) | |
3768 | { | |
3769 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3770 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3771 | |
3772 | if (!mvm_sta || !mvm_sta->vif) { | |
3773 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3774 | return -EINVAL; | |
3775 | } | |
3776 | ||
3777 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3778 | } | |
3779 | ||
507cadf2 DS |
3780 | #ifdef CONFIG_NL80211_TESTMODE |
3781 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3782 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3783 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3784 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3785 | }; |
3786 | ||
3787 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3788 | struct ieee80211_vif *vif, | |
3789 | void *data, int len) | |
3790 | { | |
3791 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3792 | int err; | |
3793 | u32 noa_duration; | |
3794 | ||
fceb6435 JB |
3795 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy, |
3796 | NULL); | |
507cadf2 DS |
3797 | if (err) |
3798 | return err; | |
3799 | ||
3800 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3801 | return -EINVAL; | |
3802 | ||
3803 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3804 | case IWL_MVM_TM_CMD_SET_NOA: | |
3805 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3806 | !vif->bss_conf.enable_beacon || | |
3807 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3808 | return -EINVAL; | |
3809 | ||
3810 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3811 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3812 | return -EINVAL; | |
3813 | ||
3814 | mvm->noa_duration = noa_duration; | |
3815 | mvm->noa_vif = vif; | |
3816 | ||
7754ae79 | 3817 | return iwl_mvm_update_quotas(mvm, false, NULL); |
f6c6ad42 JB |
3818 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3819 | /* must be associated client vif - ignore authorized */ | |
3820 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3821 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3822 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3823 | return -EINVAL; | |
3824 | ||
3825 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3826 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3827 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3828 | } |
3829 | ||
3830 | return -EOPNOTSUPP; | |
3831 | } | |
3832 | ||
3833 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3834 | struct ieee80211_vif *vif, | |
3835 | void *data, int len) | |
3836 | { | |
3837 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3838 | int err; | |
3839 | ||
3840 | mutex_lock(&mvm->mutex); | |
3841 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3842 | mutex_unlock(&mvm->mutex); | |
3843 | ||
3844 | return err; | |
3845 | } | |
3846 | #endif | |
3847 | ||
622e3f9b LC |
3848 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3849 | struct ieee80211_vif *vif, | |
3850 | struct ieee80211_channel_switch *chsw) | |
3851 | { | |
3852 | /* By implementing this operation, we prevent mac80211 from | |
3853 | * starting its own channel switch timer, so that we can call | |
3854 | * ieee80211_chswitch_done() ourselves at the right time | |
3855 | * (which is when the absence time event starts). | |
3856 | */ | |
3857 | ||
3858 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3859 | "dummy channel switch op\n"); | |
3860 | } | |
3861 | ||
f028905c LC |
3862 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3863 | struct ieee80211_vif *vif, | |
3864 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3865 | { |
3866 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3867 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3868 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3869 | u32 apply_time; |
f028905c | 3870 | int ret; |
bd3398e2 AO |
3871 | |
3872 | mutex_lock(&mvm->mutex); | |
664322fa | 3873 | |
81d62d5a JB |
3874 | mvmvif->csa_failed = false; |
3875 | ||
6b20d774 | 3876 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3877 | chsw->chandef.center_freq1); |
6b20d774 | 3878 | |
21023b1e | 3879 | iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); |
f35d9c55 | 3880 | |
6b20d774 LC |
3881 | switch (vif->type) { |
3882 | case NL80211_IFTYPE_AP: | |
3883 | csa_vif = | |
3884 | rcu_dereference_protected(mvm->csa_vif, | |
3885 | lockdep_is_held(&mvm->mutex)); | |
3886 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3887 | "Another CSA is already in progress")) { | |
3888 | ret = -EBUSY; | |
3889 | goto out_unlock; | |
3890 | } | |
3891 | ||
d3a108a4 AO |
3892 | /* we still didn't unblock tx. prevent new CS meanwhile */ |
3893 | if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, | |
3894 | lockdep_is_held(&mvm->mutex))) { | |
3895 | ret = -EBUSY; | |
3896 | goto out_unlock; | |
3897 | } | |
3898 | ||
6b20d774 | 3899 | rcu_assign_pointer(mvm->csa_vif, vif); |
7ef0aab6 | 3900 | |
7ef0aab6 AO |
3901 | if (WARN_ONCE(mvmvif->csa_countdown, |
3902 | "Previous CSA countdown didn't complete")) { | |
3903 | ret = -EBUSY; | |
3904 | goto out_unlock; | |
3905 | } | |
3906 | ||
d3a108a4 AO |
3907 | mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; |
3908 | ||
6b20d774 | 3909 | break; |
dc88b4ba | 3910 | case NL80211_IFTYPE_STATION: |
03098268 AE |
3911 | if (mvmvif->lqm_active) |
3912 | iwl_mvm_send_lqm_cmd(vif, | |
3913 | LQM_CMD_OPERATION_STOP_MEASUREMENT, | |
3914 | 0, 0); | |
3915 | ||
4500e133 LC |
3916 | /* Schedule the time event to a bit before beacon 1, |
3917 | * to make sure we're in the new channel when the | |
3918 | * GO/AP arrives. | |
3919 | */ | |
3920 | apply_time = chsw->device_timestamp + | |
3921 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3922 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3923 | |
3924 | if (chsw->block_tx) | |
3925 | iwl_mvm_csa_client_absent(mvm, vif); | |
3926 | ||
4500e133 | 3927 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3928 | apply_time); |
c6e0a3e0 LC |
3929 | if (mvmvif->bf_data.bf_enabled) { |
3930 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3931 | if (ret) | |
3932 | goto out_unlock; | |
3933 | } | |
3934 | ||
dc88b4ba | 3935 | break; |
6b20d774 LC |
3936 | default: |
3937 | break; | |
3938 | } | |
bd3398e2 | 3939 | |
f6c34820 LC |
3940 | mvmvif->ps_disabled = true; |
3941 | ||
3942 | ret = iwl_mvm_power_update_ps(mvm); | |
3943 | if (ret) | |
3944 | goto out_unlock; | |
f028905c | 3945 | |
e198f5e7 AN |
3946 | /* we won't be on this channel any longer */ |
3947 | iwl_mvm_teardown_tdls_peers(mvm); | |
3948 | ||
bd3398e2 AO |
3949 | out_unlock: |
3950 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3951 | |
3952 | return ret; | |
bd3398e2 AO |
3953 | } |
3954 | ||
f6c34820 LC |
3955 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3956 | struct ieee80211_vif *vif) | |
3957 | { | |
3958 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3959 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3960 | int ret; | |
3961 | ||
3962 | mutex_lock(&mvm->mutex); | |
3963 | ||
81d62d5a JB |
3964 | if (mvmvif->csa_failed) { |
3965 | mvmvif->csa_failed = false; | |
3966 | ret = -EIO; | |
3967 | goto out_unlock; | |
3968 | } | |
3969 | ||
a57c688d LC |
3970 | if (vif->type == NL80211_IFTYPE_STATION) { |
3971 | struct iwl_mvm_sta *mvmsta; | |
3972 | ||
3973 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3974 | mvmvif->ap_sta_id); | |
3975 | ||
3976 | if (WARN_ON(!mvmsta)) { | |
3977 | ret = -EIO; | |
3978 | goto out_unlock; | |
3979 | } | |
3980 | ||
3981 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
3982 | ||
3983 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
3984 | |
3985 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
3986 | if (ret) | |
3987 | goto out_unlock; | |
686e7fe1 LC |
3988 | |
3989 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
3990 | } |
3991 | ||
f6c34820 LC |
3992 | mvmvif->ps_disabled = false; |
3993 | ||
3994 | ret = iwl_mvm_power_update_ps(mvm); | |
3995 | ||
a57c688d | 3996 | out_unlock: |
f6c34820 LC |
3997 | mutex_unlock(&mvm->mutex); |
3998 | ||
3999 | return ret; | |
4000 | } | |
4001 | ||
c5b0e7c0 EG |
4002 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
4003 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
4004 | { | |
4005 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4006 | struct iwl_mvm_vif *mvmvif; | |
4007 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
4008 | struct ieee80211_sta *sta; |
4009 | int i; | |
4010 | u32 msk = 0; | |
c5b0e7c0 EG |
4011 | |
4012 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
4013 | return; | |
4014 | ||
24afba76 LK |
4015 | /* Make sure we're done with the deferred traffic before flushing */ |
4016 | if (iwl_mvm_is_dqa_supported(mvm)) | |
4017 | flush_work(&mvm->add_stream_wk); | |
4018 | ||
c5b0e7c0 EG |
4019 | mutex_lock(&mvm->mutex); |
4020 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 4021 | |
a0f6bf2a | 4022 | /* flush the AP-station and all TDLS peers */ |
0ae98812 | 4023 | for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { |
a0f6bf2a AN |
4024 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], |
4025 | lockdep_is_held(&mvm->mutex)); | |
4026 | if (IS_ERR_OR_NULL(sta)) | |
4027 | continue; | |
4028 | ||
4029 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
4030 | if (mvmsta->vif != vif) | |
4031 | continue; | |
4032 | ||
4033 | /* make sure only TDLS peers or the AP are flushed */ | |
4034 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
4035 | ||
d49394a1 SS |
4036 | if (drop) { |
4037 | if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) | |
4038 | IWL_ERR(mvm, "flush request fail\n"); | |
4039 | } else { | |
4040 | msk |= mvmsta->tfd_queue_msk; | |
d6d517b7 SS |
4041 | if (iwl_mvm_has_new_tx_api(mvm)) |
4042 | iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); | |
d49394a1 | 4043 | } |
480acbce | 4044 | } |
c5b0e7c0 | 4045 | |
d49394a1 | 4046 | mutex_unlock(&mvm->mutex); |
4e6c48e0 | 4047 | |
d49394a1 SS |
4048 | /* this can take a while, and we may need/want other operations |
4049 | * to succeed while doing this, so do it without the mutex held | |
4050 | */ | |
d6d517b7 | 4051 | if (!drop && !iwl_mvm_has_new_tx_api(mvm)) |
a1a57877 | 4052 | iwl_trans_wait_tx_queues_empty(mvm->trans, msk); |
c5b0e7c0 EG |
4053 | } |
4054 | ||
91a8bcde JB |
4055 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
4056 | struct survey_info *survey) | |
4057 | { | |
4058 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4059 | int ret; | |
4060 | ||
4061 | memset(survey, 0, sizeof(*survey)); | |
4062 | ||
4063 | /* only support global statistics right now */ | |
4064 | if (idx != 0) | |
4065 | return -ENOENT; | |
4066 | ||
280a3efa JB |
4067 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
4068 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
91a8bcde JB |
4069 | return -ENOENT; |
4070 | ||
4071 | mutex_lock(&mvm->mutex); | |
4072 | ||
aab6930d | 4073 | if (iwl_mvm_firmware_running(mvm)) { |
33cef925 | 4074 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
4075 | if (ret) |
4076 | goto out; | |
4077 | } | |
4078 | ||
4079 | survey->filled = SURVEY_INFO_TIME | | |
4080 | SURVEY_INFO_TIME_RX | | |
4081 | SURVEY_INFO_TIME_TX | | |
4082 | SURVEY_INFO_TIME_SCAN; | |
4083 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
4084 | mvm->radio_stats.on_time_rf; | |
4085 | do_div(survey->time, USEC_PER_MSEC); | |
4086 | ||
4087 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
4088 | mvm->radio_stats.rx_time; | |
4089 | do_div(survey->time_rx, USEC_PER_MSEC); | |
4090 | ||
4091 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
4092 | mvm->radio_stats.tx_time; | |
4093 | do_div(survey->time_tx, USEC_PER_MSEC); | |
4094 | ||
4095 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
4096 | mvm->radio_stats.on_time_scan; | |
4097 | do_div(survey->time_scan, USEC_PER_MSEC); | |
4098 | ||
10a7c028 | 4099 | ret = 0; |
91a8bcde JB |
4100 | out: |
4101 | mutex_unlock(&mvm->mutex); | |
4102 | return ret; | |
4103 | } | |
4104 | ||
33cef925 JB |
4105 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
4106 | struct ieee80211_vif *vif, | |
4107 | struct ieee80211_sta *sta, | |
4108 | struct station_info *sinfo) | |
4109 | { | |
4110 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4111 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
4112 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
4113 | ||
988b5968 SS |
4114 | if (mvmsta->avg_energy) { |
4115 | sinfo->signal_avg = mvmsta->avg_energy; | |
4116 | sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG); | |
4117 | } | |
4118 | ||
280a3efa JB |
4119 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
4120 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
33cef925 JB |
4121 | return; |
4122 | ||
4123 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
4124 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
4125 | return; | |
4126 | ||
4127 | if (!vif->bss_conf.assoc) | |
4128 | return; | |
4129 | ||
4130 | mutex_lock(&mvm->mutex); | |
4131 | ||
4132 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
4133 | goto unlock; | |
4134 | ||
4135 | if (iwl_mvm_request_statistics(mvm, false)) | |
4136 | goto unlock; | |
4137 | ||
4138 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
4139 | mvmvif->beacon_stats.accu_num_beacons; | |
4140 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
4141 | if (mvmvif->beacon_stats.avg_signal) { | |
4142 | /* firmware only reports a value after RXing a few beacons */ | |
4143 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
4144 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
4145 | } | |
4146 | unlock: | |
4147 | mutex_unlock(&mvm->mutex); | |
4148 | } | |
4149 | ||
4203263d EG |
4150 | static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, |
4151 | struct ieee80211_vif *vif, | |
4152 | const struct ieee80211_event *event) | |
d42f5350 | 4153 | { |
4c324a51 | 4154 | #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ |
d42f5350 | 4155 | do { \ |
4c324a51 | 4156 | if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ |
d42f5350 | 4157 | break; \ |
4c324a51 | 4158 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, _fmt); \ |
d42f5350 EG |
4159 | } while (0) |
4160 | ||
d42f5350 EG |
4161 | struct iwl_fw_dbg_trigger_tlv *trig; |
4162 | struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
d42f5350 EG |
4163 | |
4164 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) | |
4165 | return; | |
4166 | ||
d42f5350 EG |
4167 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); |
4168 | trig_mlme = (void *)trig->data; | |
4169 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4170 | return; | |
4171 | ||
d42f5350 EG |
4172 | if (event->u.mlme.data == ASSOC_EVENT) { |
4173 | if (event->u.mlme.status == MLME_DENIED) | |
4c324a51 | 4174 | CHECK_MLME_TRIGGER(stop_assoc_denied, |
d42f5350 EG |
4175 | "DENIED ASSOC: reason %d", |
4176 | event->u.mlme.reason); | |
4177 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4c324a51 | 4178 | CHECK_MLME_TRIGGER(stop_assoc_timeout, |
d42f5350 EG |
4179 | "ASSOC TIMEOUT"); |
4180 | } else if (event->u.mlme.data == AUTH_EVENT) { | |
4181 | if (event->u.mlme.status == MLME_DENIED) | |
4c324a51 | 4182 | CHECK_MLME_TRIGGER(stop_auth_denied, |
d42f5350 EG |
4183 | "DENIED AUTH: reason %d", |
4184 | event->u.mlme.reason); | |
4185 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4c324a51 | 4186 | CHECK_MLME_TRIGGER(stop_auth_timeout, |
d42f5350 EG |
4187 | "AUTH TIMEOUT"); |
4188 | } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { | |
4c324a51 | 4189 | CHECK_MLME_TRIGGER(stop_rx_deauth, |
d42f5350 EG |
4190 | "DEAUTH RX %d", event->u.mlme.reason); |
4191 | } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { | |
4c324a51 | 4192 | CHECK_MLME_TRIGGER(stop_tx_deauth, |
d42f5350 EG |
4193 | "DEAUTH TX %d", event->u.mlme.reason); |
4194 | } | |
4195 | #undef CHECK_MLME_TRIGGER | |
4196 | } | |
4197 | ||
4203263d EG |
4198 | static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, |
4199 | struct ieee80211_vif *vif, | |
4200 | const struct ieee80211_event *event) | |
4201 | { | |
4202 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4203 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4204 | ||
4205 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4206 | return; | |
4207 | ||
4208 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4209 | ba_trig = (void *)trig->data; | |
4210 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4211 | return; | |
4212 | ||
4213 | if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) | |
4214 | return; | |
4215 | ||
4216 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4217 | "BAR received from %pM, tid %d, ssn %d", | |
4218 | event->u.ba.sta->addr, event->u.ba.tid, | |
4219 | event->u.ba.ssn); | |
4220 | } | |
4221 | ||
4222 | static void | |
4223 | iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, | |
4224 | struct ieee80211_vif *vif, | |
4225 | const struct ieee80211_event *event) | |
4226 | { | |
4227 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4228 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4229 | ||
4230 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4231 | return; | |
4232 | ||
4233 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4234 | ba_trig = (void *)trig->data; | |
4235 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4236 | return; | |
4237 | ||
4238 | if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) | |
4239 | return; | |
4240 | ||
4241 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4242 | "Frame from %pM timed out, tid %d", | |
4243 | event->u.ba.sta->addr, event->u.ba.tid); | |
4244 | } | |
4245 | ||
4246 | static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, | |
4247 | struct ieee80211_vif *vif, | |
4248 | const struct ieee80211_event *event) | |
4249 | { | |
4250 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4251 | ||
4252 | switch (event->type) { | |
4253 | case MLME_EVENT: | |
4254 | iwl_mvm_event_mlme_callback(mvm, vif, event); | |
4255 | break; | |
4256 | case BAR_RX_EVENT: | |
4257 | iwl_mvm_event_bar_rx_callback(mvm, vif, event); | |
4258 | break; | |
4259 | case BA_FRAME_TIMEOUT: | |
4260 | iwl_mvm_event_frame_timeout_callback(mvm, vif, event); | |
4261 | break; | |
4262 | default: | |
4263 | break; | |
4264 | } | |
4265 | } | |
4266 | ||
d0ff5d22 SS |
4267 | void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, |
4268 | struct iwl_mvm_internal_rxq_notif *notif, | |
4269 | u32 size) | |
0636b938 | 4270 | { |
0636b938 SS |
4271 | u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; |
4272 | int ret; | |
4273 | ||
4274 | lockdep_assert_held(&mvm->mutex); | |
4275 | ||
bc029469 SS |
4276 | /* TODO - remove a000 disablement when we have RXQ config API */ |
4277 | if (!iwl_mvm_has_new_rx_api(mvm) || iwl_mvm_has_new_tx_api(mvm)) | |
0636b938 SS |
4278 | return; |
4279 | ||
d0ff5d22 SS |
4280 | notif->cookie = mvm->queue_sync_cookie; |
4281 | ||
4282 | if (notif->sync) | |
4283 | atomic_set(&mvm->queue_sync_counter, | |
4284 | mvm->trans->num_rx_queues); | |
0636b938 | 4285 | |
d0ff5d22 | 4286 | ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size); |
0636b938 SS |
4287 | if (ret) { |
4288 | IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); | |
4289 | goto out; | |
4290 | } | |
d0ff5d22 | 4291 | |
6ad04359 | 4292 | if (notif->sync) { |
3a732c65 | 4293 | ret = wait_event_timeout(mvm->rx_sync_waitq, |
6ad04359 JB |
4294 | atomic_read(&mvm->queue_sync_counter) == 0 || |
4295 | iwl_mvm_is_radio_killed(mvm), | |
d0ff5d22 | 4296 | HZ); |
6ad04359 JB |
4297 | WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); |
4298 | } | |
0636b938 SS |
4299 | |
4300 | out: | |
4301 | atomic_set(&mvm->queue_sync_counter, 0); | |
4302 | mvm->queue_sync_cookie++; | |
4303 | } | |
4304 | ||
4305 | static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) | |
4306 | { | |
4307 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
d0ff5d22 SS |
4308 | struct iwl_mvm_internal_rxq_notif data = { |
4309 | .type = IWL_MVM_RXQ_EMPTY, | |
4310 | .sync = 1, | |
4311 | }; | |
0636b938 SS |
4312 | |
4313 | mutex_lock(&mvm->mutex); | |
d0ff5d22 | 4314 | iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); |
0636b938 SS |
4315 | mutex_unlock(&mvm->mutex); |
4316 | } | |
4317 | ||
e5209263 | 4318 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
4319 | .tx = iwl_mvm_mac_tx, |
4320 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
4321 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 4322 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
4323 | .stop = iwl_mvm_mac_stop, |
4324 | .add_interface = iwl_mvm_mac_add_interface, | |
4325 | .remove_interface = iwl_mvm_mac_remove_interface, | |
4326 | .config = iwl_mvm_mac_config, | |
e59647ea | 4327 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 | 4328 | .configure_filter = iwl_mvm_configure_filter, |
effd1929 | 4329 | .config_iface_filter = iwl_mvm_config_iface_filter, |
8ca151b5 JB |
4330 | .bss_info_changed = iwl_mvm_bss_info_changed, |
4331 | .hw_scan = iwl_mvm_mac_hw_scan, | |
4332 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 4333 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
4334 | .sta_state = iwl_mvm_mac_sta_state, |
4335 | .sta_notify = iwl_mvm_mac_sta_notify, | |
4336 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 4337 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 4338 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 4339 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
4340 | .conf_tx = iwl_mvm_mac_conf_tx, |
4341 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 4342 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 4343 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
4344 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
4345 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
4346 | .set_key = iwl_mvm_mac_set_key, |
4347 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
4348 | .remain_on_channel = iwl_mvm_roc, | |
4349 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
4350 | .add_chanctx = iwl_mvm_add_chanctx, |
4351 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
4352 | .change_chanctx = iwl_mvm_change_chanctx, | |
4353 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
4354 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 4355 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 4356 | |
5023d966 JB |
4357 | .start_ap = iwl_mvm_start_ap_ibss, |
4358 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
4359 | .join_ibss = iwl_mvm_start_ap_ibss, | |
4360 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 | 4361 | |
2f0282db JB |
4362 | .tx_last_beacon = iwl_mvm_tx_last_beacon, |
4363 | ||
8ca151b5 JB |
4364 | .set_tim = iwl_mvm_set_tim, |
4365 | ||
622e3f9b | 4366 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 4367 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 4368 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 4369 | |
1d3c3f63 AN |
4370 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
4371 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
4372 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
4373 | ||
d42f5350 EG |
4374 | .event_callback = iwl_mvm_mac_event_callback, |
4375 | ||
0636b938 SS |
4376 | .sync_rx_queues = iwl_mvm_sync_rx_queues, |
4377 | ||
507cadf2 DS |
4378 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
4379 | ||
8ca151b5 JB |
4380 | #ifdef CONFIG_PM_SLEEP |
4381 | /* look at d3.c */ | |
4382 | .suspend = iwl_mvm_suspend, | |
4383 | .resume = iwl_mvm_resume, | |
4384 | .set_wakeup = iwl_mvm_set_wakeup, | |
4385 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
4386 | #if IS_ENABLED(CONFIG_IPV6) | |
4387 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
4388 | #endif | |
4389 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
4390 | #endif | |
91a8bcde | 4391 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 4392 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
8ca151b5 | 4393 | }; |